Compare Toolbar button: The simplest but the most useful feature of DoubleTrust
I think it is one of the most important and useful feature of DoubleTrust. Just drag this link to your browser toobar (works with ANY browser).
Then whenever you are doing a query on your favorite search engine like Google, Yahoo (supports Ask Jeeves and MSN as well), you can just click the Compare button , which will take you to the DoubleTrust search comparison page for the same query. You don't need to enter any further input.
This is very useful if you want to get a quick set of compact results (around 80 !) from the two major search engines for a particular query. Gives you more choice and quick view of both sites.
The important point is that you can still use your favorite search engine as usual and use DoubleTrust as a search accessory, if you really want to stick with your current engine.
Here is the link: http://www.cs.northwestern.edu/~agupta/doubletrust/about.html#compare