This is a web 2.0 tool that allows one to upload Powerpoint presentations to the web for accessibility. I'll use this is teaching, presentations, and professional development training!
This podcast on law and economics focuses on individual liberty and Constitutional and Common Law. This would be an excellent resource in the social studies classroom for added depth and perspective.
This article highlights the 2001: Space Odyssey "Hal"-like voice controlled super-smart computer assistant features of the iPhone 4s, and what implications it may have for the future of learning. It also sheds light on the dangers of reliance on such technology, specifically that whoever controls the information accessed by this technology will control users' thoughts/perceptions/minds, etc.