Genealogy blogs} are blogs (=weblogs) that concentrate on genealogy.
Each user of Familypedia can create blog items. Nobody else except an administrator can edit them, but there is an easy way for anyone to comment on them and to reply to comments.
Outside Familypedia there are probably thousands of genealogy blogs (out of hundreds of millions of blogs). Many or most use a specialist blogging site.
This page is a "stub" and could be improved by additions and other edits.