Index: docs/db-api.txt
===================================================================
--- docs/db-api.txt	(revision 5779)
+++ docs/db-api.txt	(working copy)
@@ -207,14 +207,24 @@
 
 The ``save()`` method has no return value.
 
-Updating ``ForeignKey`` fields works exactly the same way; simply assign an
-object of the right type to the field in question::
+Saving ForeignKey and ManyToManyField fields
+--------------------------------------------
 
+Updating ``ForeignKey`` fields works exactly the same way as saving a normal
+field; simply assign an object of the right type to the field in question:: 
+
+    cheese_blog = Blog.objects.get(name="Cheddar Talk") 
+    entry.blog = cheese_blog 
+    entry.save() 
+
+Updating a ``ManyToManyField`` works a little differently; use the ``add()``
+method on the field to add a record to the relation::
+
     joe = Author.objects.create(name="Joe")
-    entry.author = joe
-    entry.save()
+    entry.authors.add(joe)
 
-Django will complain if you try to assign an object of the wrong type.
+Django will complain if you try to assign or add an object of the wrong type.
+You can find out more about `related objects`_ fields below.
 
 How Django knows to UPDATE vs. INSERT
 -------------------------------------