Rated 5 out of 5 stars

le Dave Dragon ar Noll. 21, 2011 · buan-nasc

I really like using Blekko Search, as they automatically remove all results from Spam sites, Content Farms and Mal ware sites.
Using slash tags allows you to quickly zero in on the content you're searching for.
The Blekko Search integration with Firefox is seamless and works flawlessly.