Dogpile is a meta search engine, which gets its results from multiple search engines and directories In the search result all the name of search engine which it combines,present separately so that you can know exactly from where the search is coming from. Dogpile currently gets its results from Google, MSN Search,Yahoo, About,Ask , MIVA,LookSmart etc.It can also considered as all in one search engine.
According to Dogpile, it can search 50% more results of the Web than any single search engine” from its meta search technology. Dogpile is powered by InfoSpace.
So what is the concept behind Dogpile , on the homepage of Dogpile you will see the donation box and in the box it s flashing that “Keep the donation growing ”. This donation actually goes to the firm who works against animal cruelty. Also you can help them by three ways as explain in the picture below.