We have wanted to do something like this for some time now and consider this as an early beta version. We strongly believe in sharing content. We are looking at adding a series of other search sites too and perhaps even categorizing them. Soon we will be intergrating data from dmoz.org and also Alexa.
What we are working on at the moment are website analysis tools that extends right off the results themselves. Users will be able to run reports over a series of sites and download the data in CSV and XLS files.
Jiggd.com currently does a mashup of search results from google, yahoo, msn and gigablast. It blends the results together. Another cool feature is the ability to search in different countries. It can show you how simular and also how diverse results are across different search engines.
