Offers some good ideas on different approaches to assessment by giving students some choice in selecting assessment methods. Interesting thoughts here from Dean Shareski with great examples.
This page has all manner of links and embeds related to Twitter including slideshare, YouTube, Prezi and e-books. The author list includes Jane Hart, Tomaz Lasic and Dean Shareski. Though it is quite comprehensive, because it has so many embeds the page can take quite a little time to load up.