I was looking for a quick mm to inches conversion (no I don’t have the formula memorized) so I turned to my favorite search engine (Bing of course) and thanks in part to the auto complete feature ended up with the query 3mm conversion to inches.  To my delight the actual conversion was the first item returned.  This is very cool and really shows the value of a search engine beyond something that simply returns a set of links.  I was curious to see what Google would return so I issued the same query there…no conversion but the sponsored add (the first item in the Google result set) sent me straight over to Bing.  Love it!