轉:Google PR值全球大地震

今天國外幾個原來PR值都是6以上的博客的數值出現了大幅下降!究竟是什麼原因使這些Blog PR值下降這麼多呢?不久前有許多博客發現PR值下降是因為他們有在Text-Link-Ads這一類的交易連接網站中出售鏈接.普遍猜想會不會是Google PageRank的下降跟出售文字鏈接有直接的關係?
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但這次Google PageRank大地震中有許多博客是沒有出售連接的，如：Problogger和Copyblogger都沒有出售文字連接，也是從PR6降到PR4，一夜之間就降了2個點數的PR值。
/ P% W3 A8 J1 Q5 t6 u, }主流網站也避不掉Google PR大地震，除了博客的PR被大調降外，一些主流新聞、媒體網站的PR值也大調降。
下面給出被「地震」了 PageRank的網站列表。
國外幾個知名大博客的PR值變化：
Engadget (from 7 to 5)
: z6 D! e5 d$ mAutoBlog (from 6 to 4)
Problogger (from 6 to 4)
Copyblogger (from 6 to 4)
& W  W+ i! G4 O  MSearch Engine Journal (from 7 to 4)
Quick Online Tips (from 6 to 3)
1 n/ }0 q+ d" }3 bSearch Engine Roundtable (from 7 to 4)
Blog Herald (from 6 to 4)
2 j; i! U9 k7 \# l4 WWeblog Tools Collection (from 6 to 4)
JohnTP (from 6 to 4)
( r  A! O' W/ V5 E: R1 OCoolest Gadgets (from 5 to 3)
- g$ N3 S5 s/ n5 r6 l* P* x, U+ nCyberNet News (from 6 to 4)
' r9 J' r6 ?* S0 F. A2 QJohn Chow(from 5 to 4)
$ a/ P/ w) D/ O6 s) \* q1 ?+ `主流新聞、媒體網站的PR值變化：
Washington Post (from 7 to 5)
Washington Times (from 6 to 4)
: e" i$ @+ {% `5 S$ B# ?1 E7 GCharlotte Observer (from 6 to 4)
: V/ u4 H$ S2 H* CForbes.com (from 7 to 5)
SFGate.com (from 7 to 5)
Sun Times (from 7 to 5)
/ X, V( k" D* D( ~9 Z! p- INew Scientist (from 7 to 5)
8 S7 a( Z; F" A& b7 KSeattle Times (from 6 to 4)
2 J2 ~, ]: S( k8 d- k6 C, i( K轉:http://www.webjx.com/news/focus/20071030/news_focus_109.html