found that webmaster network some should not appear 404 errors

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Because yesterday began to participate in "Valley hundred Excellent" Keyword search engine optimization contest, so pay attention to webmaster nets more than before, inadvertently found webmaster network some should not appear 404 errors.

Http://www.admin5.com/link.htm, this is webmaster net every page footer "Friendship link" target page, webmaster Net home PR6, and this link page also obtained 4 PR. Unfortunately, a 404 error that never should have appeared:

In the Http://www.admin5.com/link.htm page click on the top left corner A5 logo, linked to/default.htm, the page does not exist, a 404;

Logo on the right side of the webmaster online | Website Operation | Industry News | Alliance information, these links are almost all 404.

Click on the Http://www.admin5.com/link.htm page at the bottom of the site home | Site Map | Domain Registration | Virtual Host | Website Forum | Website Submission | Advertising Services | Help Center | In addition to "Domain name registration" has a turn, "site submission" link into the Member landing page, the forum is the old address correct, the remaining several, are 404! For example, "home page" link to/index.htm, does not exist!

My Valley Hundred excellent domain name is the meaning of the most authentic domain name: www.GoogleBaiduOptimization.com/

Thank you for your support!