Three New Search Services: Wolfram|Alpha, Microsoft Bing, Google Squared | Disruptive Library Technology Jester

Three New Search Services: Wolfram|Alpha, Microsoft Bing, Google Squared | Disruptive Library Technology Jester

Here's a great comparison of three new search tools created by Peter Murray (the Disruptive Library Technology Jester). He describes each of the tools and then suggests some sample searches to use to compare them. He also has a screencast on the page of sample searches he has used on the tools to highlight their capabilities.