The commercial pressure on the 'free' internet is mounting. Lately Neustar/Neulevel has been trying out some DNS changes so that available names lead you to a search page. That's right - the hideous 'search MSN' feature of IE built right into the DNS. This is a hideous and completely unnecessary hack. At least with the IE MSN search I have the opportunity of turning it off. Turning off default DNS will be considerably more challenging.
The commercial reasoning is obvious, but if the notion of public space is ever to mean anything on the Internet, this kind of wholesale commercialization will have to be stopped. One would hope ICANN would step in in the case of .biz