more semantic web from ground up rather than top down: twitter #hashtags, see hashtags.org … hashtag any twitter post (eg. #montreal) and it ‘s trackable and findable on hashtags.org (I think they need to be following you on twitter). smart fellows.
(oh and here is an explanation of twitter)
[…] Cool mashup, now you can tag your Twitter posts and have’em aggregated on Hashtags simply by adding the #symbol with your tag. Simple, but brilliant. via […]