Social bookmarking and more, continued: I found CommonTimes a little while ago, but haven't had much of a chance to play with it. It looks like Google News, in that it aggregates news stories. It also reminds me of memeorandum, which connects news stories with blog commentaries.
I haven't had a chance to play with CommonTimes so far, but now I'm more interested, since you can have the thing automatically copy a post to your del.icio.us account (that's a social bookmarking service). That saves me time, and might actually set up a nice feedback loop.
Meanwhile, I'm still working through related Web 2.0 tools for bookmarking and aggregation for an article which just keeps growing and demanding revision. Prentiss commented on his Shadows project, emphasizing its support for conversation. He also distinguished between social bookmarking and social networking tools for the sake of social networks (YASNs). This is correct, as bookmarking tools are based around "social objects". My comparison of the two is based not on structure but on their chronology and market moment: lots of excitement, the rapid rollout of many projects.