This article discusses blogging, which has become central to communication in libraries and traditional library media in the past few years. It presents a survey of the library blogosphere which shows the mainstreaming of the medium. The survey of 839 blogging librarians depicts a much more diverse and rapidly growing population. The largest groups of bloggers work not in tech but in public service areas such as reference (15%), general public services (7%), and youth services (5%). While only 6% of all library bloggers are administrators, almost 40% directly supervise other staff members, and 34% have been in the profession for more than a decade. Bloggers are also well represented in more traditional media. More than 55% of bloggers have been published in print or online journals, and 20% have been published in a peer-reviewed publication.