A common practice in these booming Internet days. People register domain names for around $70, and then hold them for no reason other than someone else might want it. Most are worthless, since noone will pay for www.godzillashat.com and the like. However, some like www.sex.com, www.wallstreet.com, etc. are very valuable. Corporations hate these guys, because they might take www.mickey.com, so they claim noone can use their trademarks as domain names.