www.russiandvd.com  I hate to provide links to a purely commercial site, but there is a lot of quality free content here, as well.  For those who take the commercial road: ordering and shipping are very reliable. 

Multitran (the best online dictionary) has added browser integration that allows you to highlight a word, right click on it, and see the definition in a new window.  Excellent!

Русские словари (Russian Dictionaries)  Log in with guest as both user name and password.

www.translit.ru  A handy site for when you are away from your computer or for those of you (shame, shame) who have not russified your computer, yet.

Russian Language Mentor  A great site for practicing your reading and listening skills over the summer (or any time).

Новости недели на упрощённом русском языке  The week's news in simplified Russian.  Good listening exercises for those of you who want to start off a little slower.