The people over at Webmaster brain have created a tool to test the the search queries of Google, Yahoo & MSN in a single screen to act as a relevance tool. You simple type in your query and it searches all three engines. You are then displayed results from X,Y &Z, you then pick which search returned the most relevant results for your query and it lets you know which search engine it was that had the relevant results.
The point of the exercise is that they are counting the votes so to speak to see which search engine returns the best results from each users submissions.
netweb.blog... 