The draft forum at footballsfuture.com is really excellent. Lots of original thought and a year-round focus. I've noticed that Tannenballs has been posting there and is now among the most respected guys. I've had so much dental work since late January that I'm really behind in draft focus and need sites like that to help me become more informed.
I like the poster named jrry (sp?) on that site. Also they have an annual great metrics evaluation, courtesy of a former poster named Waldo. I havne't found that info so far this year. It spotlights the edge rushers and how they are likely to pan out, based on combine numbers. Dion Jordan flopped those numbers two years ago --simply not explosive enough -- while Jamie Collins was pinpointed as a likely star.