A quick way to search multiple article directory sites with one click — check out this search for “Public Domain“, or search for your own niche terms once you get there.

Powered by Rollyo — which stands for ‘Roll Your Own’. The site describes itself like this:

Rollyo puts the power of Yahoo! Search in your hands, by giving you the tools to create your own personal search engines - with no programming required. All you have to do is pick the sites you want to search, and we’ll create a custom search engine for you.

Try it out for yourself. It is very cool.