I found this really cool retrospective look at the Sonic series by Gametap. I thought you guys would enjoy it.

Part 1:

http://www.youtube.com/watch?v=6D9h-4vQUHM

Part 2:

http://www.youtube.com/watch?v=UkhjBAYL2Hs

Part 3:

http://www.youtube.com/watch?v=7mFs2v7XM4o

Part3 :

http://www.youtube.com/watch?v=Qbu4TEE1_pE

Forgive me if someone else already posted this.

My perspective is that the Sonic series has loads of potential, it just hasn't been tapped since Sonic Adventure.