I built yoyocase.net to manange my own, as well as my friends yoyo collections. (Shout outs to the Cleveland Yo-Yo Club!) I wanted to make it easy to:
1. Post details of your yoyos; link photos from flickr/Photobucket accounts so you don't have to upload them:
2. Edit and save yoyo details:
More fields are available for saving advanced details about each yoyo:
3. Get an overview and a report of your collection:
4. View a gallery of your yoyos, including a lightbox slideshow of each yoyo's photos:
Want all your yoyo details and photos managed in one place? Register for an account.