SIMILE is a research group looking into the development of semantic webs.
SIMILE have released a FireFox plugin, Piggy-Bank that automatically scrapes data from web sources as you visit them. You can then tag and publish this data either locally or online.
PiggyBank doesn't automatically tag data, something that I would think is required in a user-centric data management methodology. However, it's clear that the direction of PiggyBank and the work of SIMILE will provide good foundation research for my chosen project area.