Brent Simmons' wonderful NetNewsWire, has been bought by NewsGator. Kewl!! I always call NetNewsWire the gold standard of aggregators, and now that I'm back on the Mac at home, I'm really enjoying it's elegance once again.
NewsGator is now the only (?) webfeed aggregator vendor with a product on both major desktops, in Outlook, and has a web version. If they made a big deal with a blog/feed search engine, that would be a formidable client and service backend combination. Alternatively, NewsGator has to look tastier to folks like AskJeeves or Rupert Murdoch.