Google Ajax Search API

Google released a search widget for bloggers/ webmasters to include on their sites. The interesting thing about the widget is that users won’t leave the page searching for something, as results are loaded right below the search box via AJAX. Search results are sorted into 4 different categories – local, web, video, and blogs – and can be displayed in a list or with tabs. As a bonus, users can use the “copy” button on results to add them to other content (such as blog post comments).