Google Base is a place where you can add all types of information that Google will host and make searchable online: reviews, recipes, wanted ads, course schedules and more.
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.
Google Base enables you to include detailed information about your Google Base items called labels and attributes, which will help users find your content more easily when they search on Google Base or other Google properties.
You can also submit bulk content via FTP.