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?

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。
; n  F, ~3 |' J) O: b0 d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：
* L% z6 c1 O; P6 ]: t$ Y2 g; R1 ^Engadget (from 7 to 5)
7 y/ z  T. _) ?: t1 c) uAutoBlog (from 6 to 4)
Problogger (from 6 to 4)
" _4 |- w; B% o$ P5 n0 qCopyblogger (from 6 to 4)
Search Engine Journal (from 7 to 4)
Quick Online Tips (from 6 to 3)
. n1 o2 Z' Y. M  F( s1 F% p- qSearch Engine Roundtable (from 7 to 4)
0 K- @; ^5 ~- q! J# R  X0 ]1 ^Blog Herald (from 6 to 4)
Weblog Tools Collection (from 6 to 4)
- ^4 B+ l: K# [% W4 J- w, `/ D  {JohnTP (from 6 to 4)
Coolest Gadgets (from 5 to 3)
CyberNet News (from 6 to 4)
John Chow(from 5 to 4)
5 C9 h" H( W. y: T4 H' \- k4 ]0 B1 N主流新聞、媒體網站的PR值變化：
5 [; b% S. c( ^Washington Post (from 7 to 5)
2 f2 m* v$ s* a* Y$ \Washington Times (from 6 to 4)
Charlotte Observer (from 6 to 4)
) W$ R4 c  d4 K8 h; P4 g/ jForbes.com (from 7 to 5)
- H) I6 d- Y( P8 qSFGate.com (from 7 to 5)
( M5 B& u  ]" K& R& LSun Times (from 7 to 5)
+ W  i. T) O1 I7 M+ ?! ANew Scientist (from 7 to 5)
8 |% P5 M- _) C4 ASeattle Times (from 6 to 4)
" N: U# x/ G2 a) p! U2 a轉:http://www.webjx.com/news/focus/20071030/news_focus_109.html