i just signed on to this relatively new site over the weekend, and now i'm obsessed!

iKollect.com is a free site which allows you to catalog and inventory your coin collcetion. you add the description, dates, minymarks, etc, and it will even value the coin for you and keep a running tally of your collections total worth, making it ideal for insurance purposes.
spending all this time adding in my coins has renewed my interest in my U.S. collection (which i have neglected for years).

www.ikollect.com/

there is also a 'generic collection' option so you can catalog anything else you might collect, from figurines to LP records to stamps to baseball cards to autographs to comic books to... well, you get the idea. : )

anyway, i just wanted to pass this along. happy hunting!