Rollyo

I went to the web site and created a profile, with the reference being JD's Scribbles but I don't seem to understand how to use it. I followed instructions to drag it to to my tool bar and I now have something called a RollBar posted on it that when I click on it opens up on any web page I happen to be on. But I don't get the impression it is only looking in the web sites I set up. It seems to look at the web in general. I could see that it might used to create a search engine to get students to use specific web sites for research rather than relying on using Google, Yahoo or any of the common web search engines.