BlogBib: Select Librarian/Library Blogs: Annotated list.
Blogging Libraries: Lists by library type, from blogwithoutalibrary.net.
Librarian Blogs and Sites Internet Directory: Alphabetical list.
Library Weblogs: Directory categorized by geographic location, compiled by Peter Scott.
RSS(sm): Rich Site Services: A categorized registry of library services that are delivered or provided through RSS/XML, Atom, or other types of web feeds.