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I (along with a lot of others) am currently beta-testing
Twine, a new network which, to quote their site, is "powered by
semantic understanding".
Again, per their site, "
Twine automatically organizes information, learns about your interests and makes connections and recommendations. The more you use Twine, the better it understands your interests and the more useful it becomes.". For a good definition of a semantic network, please see this
Wikipedia entry.
One good feature is the group setup (groups are referred to as twines). Postings to one twine can be shared with another twine, if you're a member of both twines in question.
Please note that to join Twine, you either have to click the Register for Beta link on the
Twine home page (this may put you on a wait-list due to Twine's popularity), or someone has to invite you (that's how I got in - if interested, contact me via email, LinkedIn, etc. - I have a few invites).
Last but not least, if you do join Twine, please also join the
Courseware Development Twine (the link will be posted shortly under the Group Scoreboard).
As usual, please post your comments here.