Big changes look to be coming at google
Toolbar has shown grey bar instead of page rank since last thursday (ish) and cache servers have been messy too.
Couple that with a holiday weekend and some say there could be a big chance coming. Page rank has had little correlation to traffic over the last 8 months too.
Could 'Trust Rank' be coming...
check out
http://blog.searchenginewatch.com/blog/050425-131316
http://dbpubs.stanford.edu:8090/pub/2004-17