Yesterday, the Google Custom Search Engine blog announced a pretty cool addition to the Google Custom Search engine family: the ability to integrate Google Custom Search onto your page which will search all pages that you've linked to.
You can now create a CSE by simply placing a small piece of tailored code on a page on your site. With that one piece of code, Google's search technology will automatically include in your new CSE 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.
Here's a screenshot of the image that Barry took when he wrote about this for Search Engine Land:
Now, web directories can be a lot more useful as well.
Forum discussion continues at Search Engine Roundtable Forums.