The SB Nation fantasy football writers have updated their 2013 position rankings, and here are links to their updated rankings, along with links to player to target and avoid by position:
Players to Target by Position
Player to Avoid by Position
Value Picks by Position
Other fantasy football goodness
PPR: Why you shouldn't pass on Ray Rice
SB Nation Fantasy Football league draft results
Fantasy Football 101: Beginners
Fantasy Football 101: Which League Should I Choose?
Fantasy Football 101: Draft Strategy
Fantasy Football 101: Managing Your Team
Fantasy Football 101: Naming Your Team
Draft Strategy: Avoid Sure Things
Make sure you check out the Fantasy Football War Room over at SB Nation Fantasy Football every day.
Also, check out Kenny's Team by Team fantasy previews which you can find on Fake Teams or at SB Nation Fantasy Football.