Fixed incorrect info, and added some additions.

Author: scotthernandez

source/applications/database-references.txt

@@ -24,12 +24,15 @@ MongoDB applications use one of two methods for relating documents:
    cases.
 
 #. :ref:`DBRefs <dbref>` are references from one document to another
-   using an ObjectId, and collection and database names for the target
-   document. Resolving DBRefs requires two queries from your
+   using its _id field value, and collection, and (possibly) a database name, for the target
+   document. Resolving DBRefs requires queries from your
    application; however, many :doc:`drivers </applications/drivers>`
-   automatically resolve DBRefs. DBRefs are useful when you need to
-   embed documents from multiple collections in documents from one
-   collection.
+   have helper methods to resolve DBRefs without having to form the query manually.
+   No official driver automatically resolves DBRefs to documents for you; some frameworks and toolkits 
+   provide automatically linking and (link) resolution if you wish to use these features.
+   DBRefs are useful when you need to embed documents from multiple collections in documents from one
+   collection. They also provide a common format and type for tools which can represent the link semantics provided
+   in your documents, or for interactions between frameworks which store linked documents.
 
 Unless you have a compelling reason for using DBrefs, use manual
 references.
@@ -98,8 +101,7 @@ Background
 DBRefs are a convention for representing a :term:`document`, rather
 than a specific reference "type." They include the name of the
 collection, and in some cases the database, in addition to the
-``ObjectId``. Some :term:`drivers <driver>` also have support for
-automatic resolution of DBRef references.
+value from the _id field.
 
 Format
 ~~~~~~
@@ -134,7 +136,7 @@ Thus a DBRef document would resemble the following:
 .. note::
 
    The order of fields in the DBRef matter, and you must use the above
-   sequence when creating a DBRef.
+   sequence when using a DBRef.
 
 Support
 ~~~~~~~
@@ -155,7 +157,7 @@ Support
 
 **JavaScrpt**
    The :program:`mongo` shell's :doc:`JavaScript </reference/javascript>`
-   interface provides automatic resolution of DBRef objects.
+   interface provides a DBRef.
 
 **Perl**
    The Perl driver contains no support for DBRefs.  You can transverse
@@ -167,8 +169,7 @@ Support
    `The MongoDBRef class <http://www.php.net/manual/en/class.mongodbref.php/>`_.
 
 **Python**
-   The Python driver supports automatic resolution of DBRef
-   relationships, and provides the :api:`DBref class <python/current/api/bson/dbref.html>`,
+   The Python driver provides the :api:`DBref class <python/current/api/bson/dbref.html>`,
    and the :api:`dereference method </python/current/api/pymongo/database.html#pymongo.database.Database.dereference>`
    for interacting with DBRefs.