Search on fly

Google Co-op has a new feature "Search on Fly" . You can now create a CSE by simply placing a small piece code on a page on your site. With that one piece of code, Google's search technology will automatically include all of the sites you have linked to from that page, creating a dynamic, powerful and tailored search experience really quickly. Moreover, your new CSE will update itself periodically to include any new links added to that page.

In addition to this it has also added feature of periodically updating of links to your search engine. When you visit the "Include links" You have a new option called " Dynamically extract links this page..." You can either add only the links that you carry or expand to that entire site.

Try it out

http://www.google.com/coop/cse/onthefly