Here is a comprehensive list of the latest web2.0 literacy tools compiled by Naomi Harm, an Innovative Educator 2.0  It offers links to everything web 2.0 - bookmarking, capture and snag-it, free digital photo sites, free digital editing and conversation files, flash and share presentations, interactive whiteboards, free music and sound editing, sharing sites, timeline creators, url shortens and much more. Could keep a web2.0 nerd active for many hours and could solve your urgent web2.0 need for a presentation very quickly.