One of my favorite website ideas. It's a little too neo-luddite for me in it's marketing, but I applaud the struggle to give power back to the people (even if they can't put the toothpaste back in the tube).
As with other content on DailyTekk, this has an e-commerce focus, but some of these tools may have educational value too. (I'm thinking particularly of the grouping, filtering, and visualization tools.)
A powerful reference database that can be used to keep track of sources and also integrated with word processors to generate bibliographies and such. This does a very good job of importing metadata from websites and online texts, and pulling additional information for sources from other databases. It would be nice if this were a bit more customizable, but it may get there in time. The folks developing this are very helpful and responsive to users.
Learning 2.0 - 23 Things for Teachers is based on Learning 2.0 - 23 Things, a staff development program for the Mesquite Independent School District. That program was based on the Learning 2.0 program that was designed by Helene Blowers and adapted by the California School Library Association and others. Content and style for Learning 2.0 - 23 Things for Teachers has been borrowed and duplicated with permission, under a Creative Commons License
I saw a presentation from NEIU librarians who discussed an Edit-A-Thon they held. It can be a good way to each students about the way information is generated online, and also can be used to teach research practices (such as correct use of citations), among other things.
I love this blog because they have a pretty quick (but helpful!) introduction to all the trendy tech tools with examples and explanations about how to use them in classrooms and they update their posts fairly open!
There is a nice section listing some positive and negative aspects of Twitter that some may find useful along with some ideas of ways to incorporate it into educational settings.