The debate has focused on the negatives, and I think missed that Top Ten Sources is a send-them-away-so-they’ll-come-back site. They publish a reading list for each of the sites, containing pointers to the RSS feeds for each of the chosen source.
Mike Arrington, the superstar blogger of Web 2.0, once told me he doesn’t care how many people read his site in a web browser, what he’s looking for is subscribers to his feed. Well, if Top Ten Sources takes off, as I think it will (I’m thinking about investing), it will not only send people to your site but it will create subscribers for your feed. The fact that they publish an aggregated view of the sources is a promotional tool, they win if people subscribe to your reading list if you’re lucky enoug to be chosen as a Top Ten Source. (And in order for that to work, more aggregators have to support reading lists, as I’m sure they will.)
I hope you can see how thought-through this is. If you want more background, listen to the podcast interview I did with John Palfrey on this subject, earlier this month.