As the TechCrunch post says, if you aren’t using del.icio.us yet, this new Firefox extension they are reporting on should convert you. I have been using del.icio.us on and off for awhile. Recently I began to implement all of my bookmarks and links into it. Conveniently, this extension has come along that extends even further what I was doing and augments it by allowing tagged bookmarks to completely assimilate Firefox. Cool.