Here are some interesting things to follow using Twitter. If you are not familiar with Twitter, check out this link for a good introduction. http://www.commoncraft.com/Twitter.
Biology/Ecology
@WildEarth This is the Twitter stream for Wild Earth TV Wild Earth TV broadcasts from the Djuma Private Game Reserve. They have a web cam and also post live video from frequent drives through the reserve.
@UntamedScience This is the Twitter Stream from Untamed Science and the EcoGeeks Podcasts.
@EarthVitalSigns If you are looking for information about Global Climate Change from the Jet Propulsion Laboratory
Exploration/Adventures
@Rich_Wilson Rich Wilson is the Skipper aboard the Great American III which is participating in the Vendee Globe Solo-Non Stop around the world race. This Twitter stream includes frequent updates of his trip. Also check out sitesALIVE for teaching resources. Here are a few additional resources from Loraine a technology teacher at the Jackson School.
http://www.vendeelglobe.org/en
http://ehrweb01.aaas.org/sail/
Space Science
Space Shuttle Missions
@STS_119 STS 119 Discovery scheduled for launch on February 1, 2009.
@STS_126 This was the most recent mission from November of 2008. Check out this page for more information. http://www.space.gs/08/sts-126/
@NASA … for general information from NASA.
@Astrospace … space and astronautics news. http://www.space.gs/
Moon
@LCROSS_NASA… Lunar mission to the poles to see if there is water ice near one of the poles. See also http://lcross.arc.nasa.gov/
@LRO_NASA… The Lunar Reconnaissance Orbiter scheduled for launch in April of 2009. See also http://lunar.gsfc.nasa.gov/
Mars
@MarsScienceLab Here’s information on the next science mission to Mars due to launch in 2011.
@MarsPhoenix This was the twitter stream for Mars Phoenix which stopped transmitting from Mars on November 10, 2008. It is still active with news from Mars.
@MarsRovers Spirit and Opportunity’s official Twitter Feed. Its hard to believe that they have been on Mars for five years already. For more rover information check out: http://marsrovers.jpl.nasa.gov/home/index.html
Saturn
@CassiniSaturn From the Cassini Equinox Mission to Saturn
To Boldly Go…
@PlanetQuest Looking for planets beyond our Solar System with JPL.
It might be interesting to set up a iGoogle Page or a Pageflakes page with these feeds to use as part of a classroom science page. Or if students were studying a particular topic they have some resources to follow.
Feel free to add other similar sites in the comments.