Edutagger

Just saw this on Twitter, a social bookmarking site just for educators. It might be a good way to introduce students to social bookmarking. Looks like the content is reviewed before being posted, as not all posters have 100% of their submissions published. It's a new service and needs support, so check it out and see if it would be useful for you.

The biggest drawback - it's K12. Why does everyone think only kids are learning to read and do math? I found an amazing site on Edutagger, ESL-Kids. Unfortunately, yet again it's designed for kids, but it's free and has a worksheet function that lets you pick a topic, generate a random word list or select your own, and then choose from 18 different worksheets. It's very low level, for example some worksheets are for tracing or copying the letters, but this could work for non-literate students and those from other alphabets. Musical instruments has a nice selection of words, and so does weather. Worth checking out for beginning low ESL.