Targeting Spam > Why SEO-Conscious Blog Owners Need WP-SpamFree
[WebGeek] Another problem with spam is its effect on your blog’s search engine optimization efforts. Search engines measure the quality of your outbound links, and if you aren’t moderating your comments, there could be comment links on your site to bad neighborhoods, which are spammy sites that search engines have identified.
Some related posts from Technorati and Google.
[Midas Oracle .ORG] The Best Blogging Software (WordPress) + The Top 60 WordPress Plugins: plugin, Challenge restricts comment spam by throwing the commenter a challenge. Default challenge is an addition and multiplication math question involving three random numbers.
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