Some of these are totally worthless for classroom uses, but some are liable to make Twitter more organized and more social for your students to use for projects. As with other lists of tools, you need to explore, pick, and select.
Matt Bury's Moodle offers "...[a] range of games and activities for universities, colleges, schools, businesses and other organisations to license" (deck, 2012.11.29).
A great follow-on by R. Stannard on how to add content and "see" Moodle from the students' point of view. Includes students' content-uploads, using chats and forums, etc.
founders of #makr #startup make today from #diaspora next facebook a #socialmedia community project . I add Diaspora to Top 10 PLN tools http://bitly.com/collaborationincop2smile
Proud to be Leader in Cop2 organized in SMILE :) project managed by European Schoolnet . I tried to describe here my top 10 Social Media Curation tools to develop a PLN . Please add your feed-back and add comments with your favorite startups to build a PLN here http://bitly.com/collaborationincop2smile
"MoodleReader allows students to prove that they have done their reading via a short quiz of 10 randomized questions. If they pass the quiz, they are rewarded with the book cover added to their stamp collection on their MoodleReader page" (¶4, 2012.03.30).