Ever use Google's advanced feature to search the contents of a web domain? Of course you have. Now what if you want to search the contents of that domain again and again? And what if you want to search the contents of multiple sites simulaneously?
Here is where Rollyo comes in handy. With Rollyo you can set-up and save searches over multiple domains. For the scholar, this is useful in seached through multiple on-line journals. For example, go to the Directory of Open Access Journals (DOAJ) and choose the journals that interest you. Once you set-up your Rollyo, you can search these same sites again and again.
I also like to browse other people's Rollyos to come across recommendations for good sites. Searches for academic or university yield a lot of great university resources and some Rollyo's that I want to save for future use. If you want to see how it works, try my Social Spider Rollyo to search through the most popular bookmarking pages.