Recently I had a few presentations covering the high-level overview of Web 2.0 (concepts, applications, usage guidelines). If anyone's interested you can download the slides. Your feedback is most welcome.
Ivan Pepelnjak, CCIE#1354, is the chief technology advisor for NIL Data Communications. He has been designing and implementing large-scale data communications networks as well as teaching and writing books about advanced technologies since 1990. See his full profile, contact him or follow @ioshints on Twitter.