send and reply to a group via txt/sms (currently US only)
http://groupme.com/
math, science and tech resources for girls in middle school
http://zoeysroom.com/
twitter trends + google maps = real time local twitter trends
http://trendsmap.com/
if you are confused about the numerous video formats out there, Gizmodo breaks it down for us
http://gizmodo.com/5093670/giz-explains-every-video-format-you-need-to-know
the place for students and teachers to share videos online
http://www.schooltube.com/
like the site says, you suck at posting and listing goods on craigslist
http://www.yousuckatcraigslist.com/
send your self sms/txt, email or phone call reminders
http://task.fm/
if you can type you can make movies
http://www.xtranormal.com/
do you believe in fake science?
http://fakescience.tumblr.com/
free online courses by Yale
http://oyc.yale.edu/
learn more about google products and services
http://www.google.com/educators/
the unofficial facebook blog
http://www.allfacebook.com/
nat geo photography
http://photography.nationalgeographic.com/
the cool way to learn math
http://www.themathlab.com/
watch tv online for FREE
http://www.myeasytv.com/
stand up comedians at their best (nsfw)
http://toofar.tv/
inspired by google, make you own dot message
http://dotty-dots.appspot.com/
excel to html tables
http://tableizer.journalistopia.com/
find the most influential users on twitter
http://pulseofthetweeters.com/
domain name research and brainstorming made easy
http://www.tekiki.com/