App Inventor: Here are some recent links to help people get started with App Inventor. Resources:  http://appinventoredu.mit.edu/resources
Tutorials:

http://beta.appinventor.mit.edu/learn/tutorials/index.html

http://appinventoredu.mit.edu/resources/app-inventor-video-tutorials-beginners

also you can subscribe to the "Programming with App Inventor" forum: 

http://beta.appinventor.mit.edu/forum/