Google has launched Google Base, a service that looks like it will compete with online classifieds. Google Base allows users to enter data for any item such as courses, job listings, products, people profiles, recipes, etc.
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.
People can list one item at a time or use a bulk upload file. Google has provided a faq for the service here. Google Base will need a lot of editors to make sure the service is useful and is not filled with spam and irrelevant entries.
Google has launched 
