A little info on Worthpoint as mentioned in that article.. As always, dyor and don't take my posts as any kind of investment advice.
http://www.inc.com/inc5000/profile/worthpoint
Founded 2007 Revenue 2008 USD $354,243 Revenue 2011 USD $3 million 3-year Growth, 758% (not too shabby at all eh..)
Business Model "An online resource for collectors that provides market data on art, antiques, and collectibles along with expertise, opinions, and appraisals to help people value, preserve, buy, and sell items. Its core feature, Worthopedia, is a vast database of more than 100 million sales records aggregated from eBay, virtual marketplaces, and auction houses"
WFM Price at posting:
5.0¢ Sentiment: Hold Disclosure: Held