Microsoft Cuckolds the Search Beast with Games of Chicken
Because Microsoft can't drive users to its search engine by merit (recall the Ms. Dewey effort), it's been dangling bait over internet users with various mind games and search-oriented word puzzles.
One such game is Chicktionary, where you try to build as many words as you can with a given set of scrambled letters. Once you engage an ad banner, you're driven to Live Search Club, where your engagement with the game is counted as ongoing use of Live Search.
This is how: each time you use the scrambled letters to make a word, successful words are counted as queries in the search engine, which then brings you its definition.
This and similar games have brought inordinately good tidings to the Microsoft search camp.