Wow Rollyo certainly is an incredible idea. I wonder if these types of search engines will ever be popular will the layperson? While Google is great for general searches I can definitely see why I would rather search for a recipe on Rollyo. It gives a more speicific search target so you don't have to pour through three or four pages to find a decent link.
I've included a link to my Rollyo search bar, which is set to help someone search for news in the Comic book industry:
http://rollyo.com/bigbaddru/drus_comics_search/

Drew