Here's what you have: Zuula, a meta search engine which lets you run concurrent searches on eight different search engines.
It has a tabbed format to allow the user to switch from search results from various search engines.
At present it allows simultaneous search on eight search engines.
It can be very useful when you want to see SERPs for other search engines in addition to your favorite search engine. The tabbed format allows you to do that at a click of a mouse. Further it lets you perform separate searches for blogs, news, images and jobs.
Through the "Edit Tabls" option you can customize the order of the tabs in which they appear, filter adult content and even determine the number of search results per page. Search engines such as Zuula can markedly facilitate the searching process for the user.