We the Media is a book written by Dan Gillmor, published in 2004 by O'Reilly (ISBN 0596007337). It is also available for free online, under a Creative Commons license.
The book is about how the proliferation of grassroots internet journalists (bloggers) has changed the way news is handled. One of the book's main points is that a few big media corporations cannot control the news we get any longer, now that news is being published in real-time, available to everybody, via the Internet. The book received widespread praise from the demographic it covered, and mixed reviews elsewhere.