For all the R2 Builders out there, Astromech.net is down for some fixes today, so here are a few things to keep you busy while you wait for it to come back online.
http://www.artoo-detoo.net/ Chris Jame's site is a perennial favorite. Great resources that all builders should see.
http://vfranco.blogspot.com/ Victor's building blog is the best of the best of R2 blogs. But you already know that!
http://mcmaster.com/ If you are like me, you are going to need some hardware soon. Go ahead and order it while you wait.
https://www.facebook.com/ColeAHorton Friend me on Facebook and find fellow R2 Builders and Star Wars Fans.
http://twitter.com/colehorton If you have any time left after using the other links, there must be nothing better going on. Go ahead and follow me on twitter.