Shared media resource bookmarks

An ultra-rapid blog just to highlight an attempt to use delicious to compile a list of resources for those wanting to use and implement solutions based on shared media. When thinking of Web 2.0 applications on a prim like EtherPad, I've started by focussing on the subset that are free, synchronous and zero-registration (like EtherPad, in fact). I obviously don't have time to test every feature of every application and I will also be pointing at other resource sites as well.