Google Base is a free service for submiting all kinds of content for to host and to make searchable online. It allows content providers to upload structured data to , surface it across search properties, and syndicate it via apis, gadgets and gadget ads.

Using the Google Base Data API, developers can programmatically access Google Base. Here’s some of the things you can do:

Manage structured data
The API allows you to programmatically manage your Google Base content. Use it to post new items, edit existing items, or delete items. If you’re managing a large number of items, say for an online store or real estate business, use batch processsing.

Search for data
The API is built on top of a rich query language. By referencing attributes in your search queries, you can obtain very specific results. For example, you can search for 2006 Sedans under $15,000, or look for jobs within 3 miles of Denver, Colorado.

Google Data API protocol
The Google Base Data API uses the same underlying protocol as the other Google Data APIs. If you’re already familiar with it, see the Getting Started Guide.

Syndicate your content
You can target the appropriate audience for your content by choosing from popular item types such as Housing, Jobs, Products, and Events & activities, or by
creating your own. Published content can also surface across certain Google properties such as Google Product Search.

copy right note: The content was cut and paste from http://code.google.com/intl/de-DE/apis/base/ for the only purpose to increase the awarness of Google Base Data API.