What are the most used Search Engines?

Google is by far the most used and most popular search engine. It provides search results not only on its home page, but powers other search engines` results as well. Google claims to have indexed over 3 billion pages, but in reality that number is probably still too small. In fact, More than 300 million searches a day filter through Google`s fingertips. Oh! and Yahoo and MSN Bing are a distant second and third.