Guide to social networks for blog links

We try to list here the most important social network powered places to find links to various blogs and blog entryes. Must be split by category if possible

social network of blogs

 * bloglinker
 * blogrolling
 * bloglines

social search blogs

 * technocrati
 * linkfilter

social blogs

 * metafilter

Related HowTos

 * Social networks (What free software is there for)
 * Social networks for links (What are the main free and open)
 * Meet and interact with people (What are the social networks where you can)
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