Need more search blogs? Here are two resources that aim to point you to all the search blogs out there!
The first comes from fantomNews, a still relatively new blog that takes the same name of fantomaster's former email newsletter. Fantomaster is headed by Ralph Tegtmeier, a long-time search engine optimizer who specializes in cloaking and IP detection software.
Aside from offering a lot of interesting tips and observations on its own blog, fantommaster's assembled a list of nearly 200 search marketing blogs. It keeps growing, and you'll find it here: SEO / SEM Blogs.
Meanwhile, the Search Visibility Report has its own list of search blogs here. It also offers two interesting feeds: