If you like databases, then Sodadb (Simple Online Database) is something that you may be interested in. Below are some key points and features I extracted from the site. Best part it is completely FREE; no login is required; a secret URL gives access to your database. You can even add more security to your database with a login, if you want.
Sodadb (Simple Online Database) is a new approach to online databases. Stripped and downsized to the bare necessities, but still very powerful. Create your own online database in minutes. No manual needed.
Manage (add, edit, delete) up to 10.000 records in a gridlike interface with inline editing. The easy way to manage your data. (need more records?)