It takes a brave company to set up in business against them, but that's what several intriguing startups are doing. The nature of the computing industry is one of giants regularly toppling. Remember Wang, DEC, or even Sun? So why not Google, Microsoft or Yahoo?

Here are three new search engines worth examining, either to use as tools in your workflow or to start (SEO) techniques for your business.

Just do everybody a favor and .

Blekko brings a couple of new tricks to the search party but the main one is the concept of slashtags. These are qualifying words that are added to search phrases after a slash (/) to refine the query.