Wikipedia: Analytic Philosophy - Article from this openly-edited reference. - http://en.wikipedia.org/wiki/Analytic_philosophy
Review of `Origins of Analytical Philosophy' - Review by Mitchell Green of the book by Michael Dummett, which locates the origins of the gulf between analytical philosophy and phenomenology in some apparently minor divergences in the thought of Frege and Husserl about the relationship between concepts - http://people.virginia.edu/~msg6m/dummett.html
Sorites - Electronic journal of philosophy devoted to the analytical tradition, broadly construed. Includes online issues, information for submitters. - http://www.sorites.org/
Factasia: Analytic Philosophy - Article by Roger Bishop Jones, concisely summarizing the origins and divisions of this tradition. - http://www.rbjones.com/rbjpub/philos/inter016.htm