Podcasts, Blogs and Wiki's
Free National Geographic Podcasts
http://www.nationalgeographic.com/podcasts
Free Online Audio Books, Music and Podcasts for Teens
http://kids.learnoutloud.com/Teens
The site allows search by subject.
EdTalk
http://www.edtechtalk.com
Has discussion webcasts and the ability to chat live with other educators about technology in education.
Teacher Tube
http://www.teachertube.com
UTube for teachers
PodCasting
http://learninginhand.com/podcasting
Has free teacher and student made educational podcasting. You can also add your own or have your students add educational PodCasts.
WikiSpaces
http://www.wikispaces.com
PocketMod
http://www.pocketmod.com/v2
Digital Organizer
Kidsvid
http://kidsvid.altec.org
Teaches kids how to make videos.