Jessamyn West is librarian.net. She's a writer, speaker, agitator for all things library (well, maybe not ALL things!). You may have seen her "five technically legal signs for your library" that she created when the USA PATRIOT Act first came out. As she says on her about page:

I love libraries because I believe they are a true manifestation of the public sphere in the US. They are a place where people can read what they want, be who they are, and inform themselves about what interests them.

I like to help people do that. I am also fiercely protective of losing what is special about libraries, and much of my work concerns this preservation issue in its many facets. I am a user-oriented librarian when I’m working at a library, and a library activist when I am not. My passion presently is mucking about in the intersection of libraries, technology and politics and describing what I find there.