ClickZ : What Makes a Site Link-Worthy? Because useful content gets linked.

Recent articles written by Eric Ward:
›› What Makes a Site Link-Worthy?
›› A Link Too Far: Understanding Link Depth Origination
›› What Your Link Request Should Contain and Why
›› Link Popularity Is Not Your Only Linking Goal
›› Building an Effective Linking Strategy

http://clickz.com/cgi-bin/gt/article.html?article=2970