It's similar to Freebase *but* rather than curating the organisation of data (as Freebase does) Fluidinfo is, er, "fluid" in that it expects conventions in tagging and organising data to emerge. Evolutionary pressure will make the best / most appropriate "schema" to survive (become conventions) in much the same way that hashtags is a bottom-up convention that emerged in Twitter.

Yup, we're a start-up losing our Slashdot virginity... ;-)

Fluidinfo in a nutshell: http://www.slideshare.net/fluidinfo/fluidinfo-in-a-nutshell Happy to answer any questions (n.b. yeah, I work for Fluidinfo and I authored the presentation that I'm linking to).