Easier access to My Groups Answered
Instructables has all these Groups and fun rewards for them like the Sponsorship.
However, I'm not one for playing Hunt the Interface for very long, and getting to the groups I have joined is not obvious or easy. There is a drop down selector for "You" in the top menu (You Page, Drafts, Inbox, Favorites, Customize...) if you select Favorites, you go to an info page about You, and a left column menu says Groups. this takes you to a page that has a BIG icon cropped from very wide group image - one per group.
Other top level pages like Explore, Create Contests have much nicer presentation to find things.
Perhaps you could do something similar with the Favorites, or at least cascading menu of items.