Soovle is a customizable engine that unites the suggestion services from all the major providers in one place: Google, Bing, Amazon, Answers.com, Yahoo, Wikipedia, Youtube. I found the tool to be a major help for search and content creation inspiration. Various ways to play with it: Type a search term and press enter (or click "Soovle"). Look through the suggestions and click any of them; You will see the results quickly updated based on the new phrase you just clicked.