Connecting the dots

Several weeks back I set up a MyBlogLogs account after reading about it in Nick Carr's the Big Switch. There I connected all--or most of my "Web 2.0" accounts. I don't know if they're accounts necessarily -- in some cases their just log-ins. By I (as always) find myself asking the meta-questions. Are all these steams convergent or divergent? My interest -- in cataloging and reviewing books, restaurants, my musical tasted, my interests in art or tech, my marginal propensity to bookmark -- all these separate elements certainly converge at me. But is the cataloging and expression of them a process that would be better served by a more streamlined interface? Likely so, but any didactic attempt to impose that structure would probably fail.