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SLNN reports that Coffee-mate joins Nesquick and Splenda as one of the sweet (heh) new companies in SL.
Check out their article:
http://www.slnn.com/article/coffeemate-nesquik-splenda/
The Second Life Business Communicators Wiki has a nice list of companies and their locations in Second Life:
http://slbusinesscommunicators.pbwiki.com/Companies%20in%20Second%20Life
A nice big lobby and three floors of office space for the CNET folks, plus an ampitheater on the 4th floor. Not a bad ad-hoc gethering place. Every so often CNET holds an event or two there.
Some companies set up islands or buildings in Second Life to provide additinoal points of contact and information and presence for customers and potential customers. Some can actually jump into their core competency, like Coldwell Banker.

Lots of corporations are scrambling to make a presence in SL, with varying degreees of success. One corporate build I like is the American Apparel store, which is situated on a beach in Lerappa.