According to a number of online reports, Google is currently testing an "instant search" feature that changes search results as you type.

Ever since Microsoft launched Bing last year, Google has been implementing search features at a fairly rapid pace. According to a number of online reports, the company is currently testing an "instant search" feature that changes search results as you type.

SEO consultant Rob Ousbey first spotted the feature on his own computer over the weekend.

The feature offers up results while the user is still typing in Google.com's search box. At present, Instant Search does not appear to be implemented for all userswe attempted to use it on our own machines three days after it first appeared in the wild, and did not see it in action. Judging by Ousbey's own video (below), however, the feature does appear to be rather speedy.

A Google spokesman could not confirm or deny the accuracy of the video. "At any given time we are running between 50-200 search experiments," he said.

The spokesman pointed to a 2006 post from the official Google blog titled, "This is a test. This is only a test."

"From time to time, we run live experiments on Google  tests visible to a relatively few people - to discover better ways to search," the post said. "We do this because there's no good substitute for understanding how real people, in real-world situations, actually operate."