The news has been in the air for quite some time now that Google is launching it's "Search This Site" feature soon. This particular feature will allow you to find new search features within its search results. In the past few weeks all the major search engines are undergoing a redesigning process. For example, Yahoo! is redesigning it's homepage, while Microsoft is busy to improve Windows Live. And if these two are busy making enhancements in their search engines then how can Google lag behind. So probably, by introducing "Search This Site" feature, Google is just wanting to be one step ahead from it's competitors.
Not a bad idea at all Google!
From Yellow Pipe News via Cybernet:
Google is testing a new search feature within its search results. It's an expandable content that can display more information about a site including an image and a short text based on the content of the site, Related links, and "Inside this site" links. There is also a search "Search this site" feature. The feature is apparently in testing phase as it appears only randomly.
However, it is said that users can enjoy quick and rapid results as Google will also introduce more links to the sites. In one way it is good that without making a mess they are providing more information, and it will surly get positive response from the users. For more information refer Cybernet News.