The idea of PlanetOU was always to represent a community around an institution by aggregating blogs written by people connected to it (the idea is explained in full in my earlier post What planet are you from? PlanetOU of course!).
You may have noticed that modern browsers have a facility to discover search engines on sites and add them to their browser search bar. Flock also shows you what content it has autodiscovered on a site by highlighting various buttons. You may also have noticed that these buttons do nothing when somebody visits your Drupal powered site. Well don't worry this is very easy to fix.