Google Base is Google's database into which you can add all types of content. We'll host your content and make it searchable online for free.
Examples of items you can find in Google Base:
• Description of your party planning service
• Articles on current events from your website
• Listing of your used car for sale
• Database of protein structures
You can describe any item you post with attributes, which will help people find it when they search Google Base. In fact, based on the relevance of your items, they may also be included in the main Google search index and other Google products like Froogle and Google Local.
More information and screenshots can be found on on sewesom.com.
What can this actually be useful for? Let us see. As this is google, they will provide APIs to let external applications access the databa... sorry, googlebase. So nothing is stopping you from using this to manage your DVD collection, for instance. You can use it for simple stuff, like TODO lists, that you can take everywhere with you (at least everywhere you have google-access), you can use this for a simple address book or phone lists - pratically everything you are doing in Excel that does not involve complex spreadsheet calculations. Now, it is not known wheter it allows you to set up private databases, I sure hope it does. But if it does, this is going to be a fun tool to play around with.