Fixed #21585 -- Updated some links to 3rd party database projects.

Thanks graeme.perrow at sap.com for the original report.

docs/ref/databases.txt

@@ -850,9 +850,9 @@ Using a 3rd-party database backend
 In addition to the officially supported databases, there are backends provided
 by 3rd parties that allow you to use other databases with Django:
 
-* `Sybase SQL Anywhere`_
+* `SAP SQL Anywhere`_
 * `IBM DB2`_
-* `Microsoft SQL Server 2005`_
+* `Microsoft SQL Server`_
 * Firebird_
 * ODBC_
 * ADSDB_
@@ -862,9 +862,9 @@ vary considerably. Queries regarding the specific capabilities of these
 unofficial backends, along with any support queries, should be directed to
 the support channels provided by each 3rd party project.
 
-.. _Sybase SQL Anywhere: http://code.google.com/p/sqlany-django/
+.. _SAP SQL Anywhere: https://github.com/sqlanywhere/sqlany-django
 .. _IBM DB2: http://code.google.com/p/ibm-db/
-.. _Microsoft SQL Server 2005: http://code.google.com/p/django-mssql/
-.. _Firebird: http://code.google.com/p/django-firebird/
+.. _Microsoft SQL Server: http://django-mssql.readthedocs.org/en/latest/
+.. _Firebird: https://github.com/maxirobaina/django-firebird
 .. _ODBC: https://github.com/lionheart/django-pyodbc/
 .. _ADSDB: http://code.google.com/p/adsdb-django/

docs/topics/install.txt

@@ -86,19 +86,9 @@ from other databases, so if you are working on something substantial, it's
 recommended to develop with the same database as you plan on using in
 production.
 
-In addition to the officially supported databases, there are backends provided
-by 3rd parties that allow you to use other databases with Django:
-
-* `Sybase SQL Anywhere`_
-* `IBM DB2`_
-* `Microsoft SQL Server 2005`_
-* Firebird_
-* ODBC_
-
-The Django versions and ORM features supported by these unofficial backends
-vary considerably. Queries regarding the specific capabilities of these
-unofficial backends, along with any support queries, should be directed to the
-support channels provided by each 3rd party project.
+In addition to the officially supported databases, there are :ref:`backends
+provided by 3rd parties <third-party-notes>` that allow you to use other
+databases with Django.
 
 In addition to a database backend, you'll need to make sure your Python
 database bindings are installed.