Use this query to find the number of backlinks to a website or sub page for each of the major search engines. The returned number is a clickable link, allowing you to see the actual sites that link to the website for each search engine.

If you depend on visitors finding your website through a key word search, you need to appear on the first few pages of a search engine. Search engine rankings for key words correlate highly to the number and quality of backlinks to your site.

http://www.siteometrics.com/serpcheck.php