Definitely a winner...

65,812 sites or so out there for Collectors... But there's Always room for Fresh new ideas...

Buying... Selling... Valuable collectible information...

Browse the Kollecta catalogue of around 1.4 million (and growing!) items...

Excellent resource & research Tool for Finding some very interesting Collector niches & money making Keywords...

Maybe even some Domaining...

http://www.kollecta.com/
http://www.kollecta.com/walkthrough/start
http://kollectamaniac.wordpress.com/

Phil