Treasury now has demo views for each of the supported game systems. If you aren't signed in to a Mythacle account, the Treasury home page will have a list of links to the demo views so you can explore how collection management works in Treasury, after which I'm sure you'll decide to finally create an account of your own.
Demo views available in Mythacle Treasury
Mythacle Treasury, the online CMG collection tracking system, now has demos of some of the games available in the system. From their announcement: