Google Confirms Panda 3.3 Update, Plus Changes To How It Evaluates Links, Local Search Rankings & Much More --- "we are turning off a method of link analysis that we used for several years" --- oh that's nice and clear!
"Link evaluation. We often use characteristics of links to help us figure out the topic of a linked page. We have changed the way in which we evaluate links; in particular, we are turning off a method of link analysis that we used for several years. We often rearchitect or turn off parts of our scoring in order to keep our system maintainable, clean and understandable."