Create online social concept maps.
Ning is a platform for creating your own social networks. Free. Public or private.
Social media in learning - handbook and tool descriptions. Background and applications.
Wikispaces provides free access for those wanting to start a wiki. Public space at no cost, private space for a fee.
Summize allows a search of Twitter posts. This is an interesting way to track a current topic through Twitter posts.
David Warlick's blog.
Social bookmarking site - store bookmarks online, search by tags, view bookmark lists provided by others.
Search Flickr by tags - very interesting interface.
Inslices helps you to collect, share and organize relevant web pages selections while surfing.
Harvard education bookmarks project. Similar, but more sophiticated, than edtech links.
