Google unveiled four new applications at its annual press day:
Google Desktop version 4 which features Gadgets, allowing people to run mini-interactive programs within the products Sidebar. The latest version of Google Desktop is also more integrated with other Google services.
The next new service is Google Notebook. It's not available yet but it should be online by next week. Basically it's designed to let people click on a "note this" link in search engine page results and save the result information to a virtual notebook in a pop-up window.
Also announced today it Google Trends. You can check this out over here. It enables you to see a number of global searches on whatever a Google user types into the search engine.
The last new service is Google Co-op. It's a social search service which enables experts in a field to label or tag websites that Google will include on the main search page. For example, a doctor can label web pages related to arthritis, and users who subscribe to that doctor's information will receive options at the top of the results for more specific information such as "treatment," "symptoms," or "for health professionals" when they enter a relevant query.