Google PR值全球大地震

今天国外几个原来PR值都是6以上的博客的数值出现了大幅下降!究竟是什么原因使这些Blog PR值下降这么多呢?不久前有许多博客发现PR值下降是因为他们有在Text-Link-Ads这一类的交易连接网站中出售链接.普遍猜想会不会是Google PageRank的下降跟出售文字链接有直接的关系?

但这次Google PageRank大地震中有许多博客是没有出售连接的，如：Problogger和Copyblogger都没有出售文字连接，也是从PR6降到PR4，一夜之间就降了2个点数的PR值。

主流网站也避不掉Google PR大地震，除了博客的PR被大调降外，一些主流新闻、媒体网站的PR值也大调降。

下面给出被“地震”了 PageRank的网站列表。

国外几个知名大博客的PR值变化：

Engadget (from 7 to 5)
AutoBlog (from 6 to 4)
Problogger (from 6 to 4)
Copyblogger (from 6 to 4)
Search Engine Journal (from 7 to 4)
Quick Online Tips (from 6 to 3)
Search Engine Roundtable (from 7 to 4)
Blog Herald (from 6 to 4)
Weblog Tools Collection (from 6 to 4)
JohnTP (from 6 to 4)
Coolest Gadgets (from 5 to 3)
CyberNet News (from 6 to 4)
John Chow(from 5 to 4)

主流新闻、媒体网站的PR值变化：

Washington Post (from 7 to 5)
Washington Times (from 6 to 4)
Charlotte Observer (from 6 to 4)
Forbes.com (from 7 to 5)
SFGate.com (from 7 to 5)
Sun Times (from 7 to 5)
New Scientist (from 7 to 5)
Seattle Times (from 6 to 4)