diff --git a/SabreTools.RedumpLib.Test/Data/ExtensionsTests.cs b/SabreTools.RedumpLib.Test/Data/ExtensionsTests.cs
index d334699..898ff7e 100644
--- a/SabreTools.RedumpLib.Test/Data/ExtensionsTests.cs
+++ b/SabreTools.RedumpLib.Test/Data/ExtensionsTests.cs
@@ -3622,6 +3622,113 @@ namespace SabreTools.RedumpLib.Test.Data
 
         #endregion
 
+        #region Submission Type
+
+        /// <summary>
+        /// Check that every SubmissionType has a long name provided
+        /// </summary>
+        /// <param name="sortDirection">SubmissionType value to check</param>
+        /// <param name="expectNull">True to expect a null value, false otherwise</param>
+        [Theory]
+        [MemberData(nameof(GenerateSubmissionTypeTestData))]
+        public void SubmissionType_LongName(SubmissionType? sortDirection, bool expectNull)
+        {
+            var actual = sortDirection.LongName();
+
+            if (expectNull)
+                Assert.Null(actual);
+            else
+                Assert.NotNull(actual);
+        }
+
+        /// <summary>
+        /// Check that every SubmissionType has a short name provided
+        /// </summary>
+        /// <param name="sortDirection">SubmissionType value to check</param>
+        /// <param name="expectNull">True to expect a null value, false otherwise</param>
+        [Theory]
+        [MemberData(nameof(GenerateSubmissionTypeTestData))]
+        public void SubmissionType_ShortName(SubmissionType? sortDirection, bool expectNull)
+        {
+            var actual = sortDirection.ShortName();
+
+            if (expectNull)
+                Assert.Null(actual);
+            else
+                Assert.NotNull(actual);
+        }
+
+        /// <summary>
+        /// Ensure that every SubmissionType that has a short name that is unique
+        /// </summary>
+        [Fact]
+        public void SubmissionType_ShortName_NoDuplicates()
+        {
+            var fullSubmissionTypes = Enum.GetValues<SubmissionType>().Cast<SubmissionType>().ToList();
+            var filteredSubmissionTypes = new Dictionary<string, SubmissionType?>();
+
+            int totalCount = 0;
+            foreach (SubmissionType? sortDirection in fullSubmissionTypes)
+            {
+                var code = sortDirection.ShortName();
+                if (string.IsNullOrEmpty(code))
+                    continue;
+
+                // Throw if the code already exists
+                if (filteredSubmissionTypes.ContainsKey(code))
+                    throw new DuplicateNameException($"Code {code} already in dictionary");
+
+                filteredSubmissionTypes[code] = sortDirection;
+                totalCount++;
+            }
+
+            Assert.Equal(totalCount, filteredSubmissionTypes.Count);
+        }
+
+        /// <summary>
+        /// Check that every SubmissionType can be mapped from a string
+        /// </summary>
+        /// <param name="sortDirection">SubmissionType value to check</param>
+        /// <param name="expectNull">True to expect a null value, false otherwise</param>
+        [Theory]
+        [MemberData(nameof(GenerateSubmissionTypeTestData))]
+        public void SubmissionType_ToSubmissionType(SubmissionType? sortDirection, bool expectNull)
+        {
+            string? longName = sortDirection.LongName();
+            string? longNameSpaceless = longName?.Replace(" ", string.Empty);
+
+            var actualNormal = longName.ToSubmissionType();
+            var actualSpaceless = longNameSpaceless.ToSubmissionType();
+
+            if (expectNull)
+            {
+                Assert.Null(actualNormal);
+                Assert.Null(actualSpaceless);
+            }
+            else
+            {
+                Assert.Equal(sortDirection, actualNormal);
+                Assert.Equal(sortDirection, actualSpaceless);
+            }
+        }
+
+        /// <summary>
+        /// Generate a test set of SubmissionType values
+        /// </summary>
+        /// <returns>MemberData-compatible list of SubmissionType values</returns>
+        public static TheoryData<SubmissionType?, bool> GenerateSubmissionTypeTestData()
+        {
+            var testData = new TheoryData<SubmissionType?, bool>() { { null, true } };
+            foreach (SubmissionType? sortDirection in Enum.GetValues<SubmissionType>().Cast<SubmissionType?>())
+            {
+                testData.Add(sortDirection, false);
+            }
+
+            return testData;
+        }
+
+        #endregion
+
         #region System Category
 
         /// <summary>
diff --git a/SabreTools.RedumpLib/Data/Constants.cs b/SabreTools.RedumpLib/Data/Constants.cs
index 5c33109..0b6e105 100644
--- a/SabreTools.RedumpLib/Data/Constants.cs
+++ b/SabreTools.RedumpLib/Data/Constants.cs
@@ -142,6 +142,7 @@ namespace SabreTools.RedumpLib.Data
             DiscSubpath.Cuesheet,
             DiscSubpath.Edit,
             DiscSubpath.History,
+            DiscSubpath.SBI,
         ];
 
         #endregion
diff --git a/SabreTools.RedumpLib/Data/Enumerations.cs b/SabreTools.RedumpLib/Data/Enumerations.cs
index d4c0d45..b56ea96 100644
--- a/SabreTools.RedumpLib/Data/Enumerations.cs
+++ b/SabreTools.RedumpLib/Data/Enumerations.cs
@@ -77,7 +77,6 @@ namespace SabreTools.RedumpLib.Data
         [HumanReadable(LongName = "MD5", ShortName = "md5")]
         MD5,
 
-        /// <remarks>Only in redump.org</remarks>
         [HumanReadable(LongName = "SBI", ShortName = "sbi")]
         SBI,
 
@@ -3996,6 +3995,21 @@ namespace SabreTools.RedumpLib.Data
         Descending,
     }
 
+    /// <summary>
+    /// List of all recognized submission display kinds
+    /// </summary>
+    public enum SubmissionType
+    {
+        [HumanReadable(LongName = "Edit", ShortName = "Edit")]
+        Edit,
+
+        [HumanReadable(LongName = "New Disc", ShortName = "New+Disc")]
+        NewDisc,
+
+        [HumanReadable(LongName = "Verification", ShortName = "Verification")]
+        Verification
+    }
+
     /// <summary>
     /// List of system categories
     /// </summary>
diff --git a/SabreTools.RedumpLib/Data/Extensions.cs b/SabreTools.RedumpLib/Data/Extensions.cs
index 90368b5..5af028d 100644
--- a/SabreTools.RedumpLib/Data/Extensions.cs
+++ b/SabreTools.RedumpLib/Data/Extensions.cs
@@ -2513,6 +2513,70 @@ namespace SabreTools.RedumpLib.Data
 
         #endregion
 
+        #region Submission Type
+
+        /// <summary>
+        /// Get the human readable name for a SubmissionType
+        /// </summary>
+        /// <param name="sortDirection"></param>
+        /// <returns></returns>
+        public static string? LongName(this SubmissionType sortDirection)
+            => AttributeHelper<SubmissionType>.GetHumanReadableAttribute(sortDirection)?.LongName;
+
+        /// <summary>
+        /// Get the human readable name for a SubmissionType
+        /// </summary>
+        /// <param name="sortDirection"></param>
+        /// <returns></returns>
+        public static string? LongName(this SubmissionType? sortDirection)
+            => AttributeHelper<SubmissionType?>.GetHumanReadableAttribute(sortDirection)?.LongName;
+
+        /// <summary>
+        /// Get the URL path part for a SubmissionType
+        /// </summary>
+        /// <param name="sortDirection"></param>
+        /// <returns></returns>
+        public static string? ShortName(this SubmissionType sortDirection)
+            => AttributeHelper<SubmissionType>.GetHumanReadableAttribute(sortDirection)?.ShortName;
+
+        /// <summary>
+        /// Get the URL path part for a SubmissionType
+        /// </summary>
+        /// <param name="sortDirection"></param>
+        /// <returns></returns>
+        public static string? ShortName(this SubmissionType? sortDirection)
+            => AttributeHelper<SubmissionType?>.GetHumanReadableAttribute(sortDirection)?.ShortName;
+
+        /// <summary>
+        /// Get the Region enum value for a given string
+        /// </summary>
+        /// <param name="sortDirection">String value to convert</param>
+        /// <returns>Region represented by the string, if possible</returns>
+        public static SubmissionType? ToSubmissionType(this string? sortDirection)
+        {
+            // No value means no match
+            if (sortDirection is null || sortDirection.Length == 0)
+                return null;
+
+            sortDirection = sortDirection.ToLowerInvariant();
+            var sortCategories = (SubmissionType[])Enum.GetValues(typeof(SubmissionType));
+
+            // Check short names
+            int index = Array.FindIndex(sortCategories, s => sortDirection == s.ShortName()?.ToLowerInvariant());
+            if (index > -1)
+                return sortCategories[index];
+
+            // Check long names
+            index = Array.FindIndex(sortCategories, s => sortDirection == s.LongName()?.ToLowerInvariant()
+                || sortDirection == s.LongName()?.Replace(" ", string.Empty)?.ToLowerInvariant());
+            if (index > -1)
+                return sortCategories[index];
+
+            return null;
+        }
+
+        #endregion
+
         #region System Category
 
         /// <summary>
diff --git a/SabreTools.RedumpLib/Web/UrlBuilder.cs b/SabreTools.RedumpLib/Web/UrlBuilder.cs
index 34e8f34..ff55c28 100644
--- a/SabreTools.RedumpLib/Web/UrlBuilder.cs
+++ b/SabreTools.RedumpLib/Web/UrlBuilder.cs
@@ -18,6 +18,11 @@ namespace SabreTools.RedumpLib.Web
 
         #region Top-Level Paths
 
+        /// <summary>
+        /// Path for about page
+        /// </summary>
+        private const string AboutPath = "about/";
+
         /// <summary>
         /// Path for BIOS datfile downloads
         /// </summary>
@@ -26,12 +31,12 @@ namespace SabreTools.RedumpLib.Web
         /// <summary>
         /// Path for cuesheet pack downloads
         /// </summary>
-        private const string CuesPath = @"cues/{0}/";
+        private const string CuesPath = @"cues/{0}";
 
         /// <summary>
         /// Path for datfile downloads
         /// </summary>
-        private const string DatfilePath = @"datfile/{0}/";
+        private const string DatfilePath = @"datfile/{0}";
 
         /// <summary>
         /// Path for individual disc pages
@@ -51,7 +56,7 @@ namespace SabreTools.RedumpLib.Web
         /// <summary>
         /// Path for key pack downloads
         /// </summary>
-        private const string KeysPath = @"keys/{0}/";
+        private const string KeysPath = @"keys/{0}";
 
         /// <summary>
         /// Path for discs queue
@@ -66,7 +71,7 @@ namespace SabreTools.RedumpLib.Web
         /// <summary>
         /// Path for SBI pack downloads
         /// </summary>
-        private const string SbiPath = @"sbi/{0}/";
+        private const string SbiPath = @"sbi/{0}";
 
         #endregion
 
@@ -74,6 +79,19 @@ namespace SabreTools.RedumpLib.Web
 
         #endregion
 
+        /// <summary>
+        /// Build a /about/ path URL
+        /// </summary>
+        public static string BuildAboutUrl()
+        {
+            var sb = new StringBuilder();
+
+            sb.Append(SiteBaseUrl);
+            sb.Append(AboutPath);
+
+            return sb.ToString();
+        }
+
         /// <summary>
         /// Build a /static/bios/ path URL
         /// </summary>
@@ -365,13 +383,17 @@ namespace SabreTools.RedumpLib.Web
         /// <summary>
         /// Build a /downloads/ path URL
         /// </summary>
-        public static string BuildDownloadsUrl()
+        /// <param name="database">Target database download</param>
+        public static string BuildDownloadsUrl(bool? database = null)
         {
             var sb = new StringBuilder();
 
             sb.Append(SiteBaseUrl);
             sb.Append(DownloadsPath);
 
+            if (database == true)
+                sb.Append("database");
+
             return sb.ToString();
         }
 
@@ -381,6 +403,7 @@ namespace SabreTools.RedumpLib.Web
         /// <param name="packType">Pack type</param>
         /// <param name="system">System for download</param>
         /// <remarks>Does not check for invalid systems</remarks>
+        /// TODO: Handle download_dat_variant?
         public static string BuildPackUrl(PackType packType, PhysicalSystem system)
         {
             var sb = new StringBuilder();
@@ -408,12 +431,94 @@ namespace SabreTools.RedumpLib.Web
         /// <summary>
         /// Build a /queue/ path URL
         /// </summary>
-        public static string BuildQueueUrl()
+        /// <param name="discId">Add disc ID to filter, null to omit</param>
+        /// <param name="isDiscHistory">Set disc history status, null to omit</param>
+        /// <param name="order">Add sorting direction, null to omit</param>
+        /// <param name="page">Page number, null to omit</param>
+        /// <param name="sort">Add sorting type, null to omit</param>
+        /// <param name="status">Add status to filter, null to omit</param>
+        /// <param name="submitter">Add submitter name to filter, null to omit</param>
+        /// <param name="subType">Add submission type to filter, null to omit</param>
+        /// <param name="system">Add system to filter, null to omit</param>
+        /// <remarks>Ordered according to site source code</remarks>
+        public static string BuildQueueUrl(
+            long? discId = null,
+            bool? isDiscHistory = null,
+            SortDirection? order = null,
+            long? page = null,
+            SortCategory? sort = null,
+            DumpStatus? status = null,
+            string? submitter = null,
+            SubmissionType? subType = null,
+            PhysicalSystem? system = null)
         {
             var sb = new StringBuilder();
 
             sb.Append(SiteBaseUrl);
             sb.Append(QueuePath);
+            sb.Append('?');
+
+            // Status
+            string? statusName = status.LongName();
+            if (statusName is not null)
+                sb.Append($"status={statusName}&");
+
+            // Submission Type
+            string? subTypeName = subType.ShortName();
+            if (subTypeName is not null)
+                sb.Append($"sub_type={subTypeName}&");
+
+            // System
+            string? systemName = system.ShortName();
+            if (systemName is not null)
+                sb.Append($"system={systemName}&");
+
+            // Submitter
+            if (submitter is not null)
+                sb.Append($"submitter={submitter}&");
+
+            // Disc ID
+            if (discId is not null)
+                sb.Append($"disc_id={discId}&");
+
+            // Sorting
+            switch (sort)
+            {
+                case SortCategory.Title:
+                case SortCategory.Added:
+                case SortCategory.Region:
+                case SortCategory.System:
+                case SortCategory.Version:
+                case SortCategory.Edition:
+                case SortCategory.Language:
+                case SortCategory.Languages:
+                case SortCategory.Serial:
+                case SortCategory.Status:
+                case SortCategory.Modified:
+                    sb.Append($"sort={sort.ShortName()}&");
+                    break;
+
+                default: break;
+            }
+
+            // Sort Direction
+            switch (order)
+            {
+                case SortDirection.Ascending:
+                case SortDirection.Descending:
+                    sb.Append($"order={order.ShortName()}&");
+                    break;
+
+                default: break;
+            }
+
+            // Page Number
+            if (page is not null)
+                sb.Append($"page={page}");
+
+            // Is Disc History
+            if (isDiscHistory is not null)
+                sb.Append($"is_disc_history={isDiscHistory.ToYesNo().LongName()}&");
 
             return sb.ToString();
         }