In Dec 2008, Google Blog Search began indexing full contents. Since then, there have been numerous complaints of about “irrelevant, or outdated blog results, blogs are no longer indexed quickly, and Google indexing & including blogroll code in the link command results”. Google will be conducting “visual experiments early next month” that will start with the link: queries and focus on “blogroll detectors” in the matching algorithm, said Jeremy Hylton in a Google Groups thread.

Source:→ SEL Blog