To make a trilogy of places where the net's coordination costs change the nature of collaboration, I add a link to Abuseable Tech, a weblog devoted to chronicling abuse or misuse of security tools, to today's earlier posts about Howard Dean and Groklaw. The Abusable Tech weblog is good idea, of course, but what really gives the thing weight is the contributor list -- it's like someone decided that the Olympic team should play all year round, not just every 4 years. Bellovin, Blaze, Cheswick, Cranor, Felten, Schneier, the list is a dream team. And it could only happen in a weblog. If you wanted to hire those 20 or so people, it would take millions in non-profit money, and you could hire maybe a quarter of them when all was said and done. In any given year, you might be able to get half of them to publish in a single journal. If you really worked it, you could get three-quarters of them to show up at a single conference, if you got lucky on scheduling, and even then, you'd only hear about a tiny fraction of their work. A weblog, though, is the perfect environment -- simple enough to use that you can publish in 10 minute intervals, cheap enough not to require a business model, distributed enough to trigger no institutional antibodies, public enough to be useful. In addition to suggesting that the group publishing pattern is only going to grow, it also points to a possible future development path for weblogs themselves. The publishing interface for MT is terrific as a single-user interface; however, it provides almost no additional value for groups. At Many2Many, any private questions or conversations are done in mail. Lowering the coordination cost is only part of the battle -- designing interfaces to help the groups that convene around these newly easy tools work together could be a significant, and still mostly unexplored, source of value.