<blockquote>At least four websites -- www.depository.net, www.denuo.com, www.addrex.net and www.tradeipv4.com -- are serving as brokers for organizations that want to sell or lease IPv4 address space.</blockquote>
via <a href="http://www.networkworld.com/news/2011/042511-ipv4-sales.html?hpg1=bn">Need IPv4 addresses? Get 'em here</a>.

And so it all begins...