Google has decreased the PR of some of the big names in blogging world. Here is the list of them whose blog I follow myself very closely:

http://www.autoblog.com/ PR6– PR4
http://www.copyblogger.com/ PR6 PR4
http://www.joystiq.com/ PR6 PR4
http://www.tuaw.com/ PR6 PR4
http://www.engadget.com/ PR7 PR5
http://www.problogger.net/ PR6 PR4

A few search and money related sites as examples:

http://www.searchengineguide.com PR7 PR4
http://www.searchenginejournal.com PR7 PR4
http://www.johnchow.com PR6 PR4
http://www.quickonlinetips.com/ PR6 PR3
http://weblogtoolscollection.com/ PR6 PR4
http://andybeard.eu PR5 PR3
Vlad PR4 PR2

This is what Google has to say about the latest algorithm they are using for page rank calculation: Don’t participate in link schemes designed to increase your site’s ranking or PageRank. In particular, avoid links to web spammers or “bad neighborhoods” on the web, as your own ranking may be affected adversely by those links.