Quite easily the most impressive travel blogging application we have seen, Entrip was showcased at HeadStart and Compute 2009 earlier this year.

Entrip from Headstart Network Foundation on Vimeo.

Alertpedia is a very interesting alerting service that works on structured queries and could be a very useful tool for both online visitors and publishers.

Alertpedia from Headstart Network Foundation on Vimeo.