I'm a teacher librarian & recently started a community based blog for getting boys to read - http://GettingBoysToRead.com. Please send me a friend request if you'd like to network, share ideas, and learn more about getting boys to read.
On the left of your page (underneath the T-rex and your name and such), there should be a line that says "Change my photo or theme." You should be able to click the hot-button word "theme" and customize a bit. Also, one of the tabs at the top of the page is "Gadgets." You can add some other stuff to your page there.
Hope that helps!