Archive of a great webinar from 12-10-11 dealing with Livescribe/Smartpens. The webinar included primary, secondary, and college educators who gave many examples. The livebinder that accompanies this is filled with resources and examples.
Simple K-12 periodically offers some free webinars on web 2.0 topics (of course, trying to entice people to become subscribers), but even the free ones include some great presenters and topics
Recordings of LiveClass2.0 webinars. These orginate at noon on Saturdays. Fabulous livebinders are created for each show. They are moving them over from another site, so not all are here as yet.
Another great resource from Laura Candler. Includes some free resources, including a webinar. The things she has for sale are pretty reasonably priced. I thought this might tie in with the recent math PD.
Elaine Plybon's livebinder on social media use in the classroom. This includes sites that simulate social media tools. I attended a webinar she presented on 4-14-12