Now that Google has launched Google Buzz with 9 million posts in less than 3 days of it entering people's Gmail accounts across the world, they have also announced their acquisition of Aardvark.  For $50 million Google now has access to Aardvark's technology that allows people to ask questions to either their network or to the public at large.  Ideally the "public at large" means those questions will be answered by experts in those fields.  The greatest part of this technology is that the answers to your questions will be pushed back to you through E-mail, Instant Message, Twitter, and eventually Google Buzz.   Google is clearly getting deep into the online social networking field, and they are doing it buy adding the kind of features that will make it useful to their users.  

However, it may take a couple years for this feature to be completely robust, as Aardvark says they are still two years away from handling the support volume they anticipate.  In the meantime, it's nice to see Google enhancing their search features by adding the technology of Aardvark into their repertoire.