This past Wednesday, Google started rolling out the latest evolution of their search engine. “Google Instant,” as they call it, enables you to execute your searches significantly faster. It’s like the existing Suggest feature, only more so. The search results appear as you type, updating as you go.
This video demonstrates it well:
It takes a little time to get used to, but it actually does seem to be quicker. There isn’t a noticeable lag while results load, even on a 1mbps DSL line. The feature does disable itself on slower connections, though.
Google Instant: It Searches Before You Type [TechCrunch]