After having failed to acquire Yahoo, and its pool or daily users, Microsoft is aiming to boost visit and usage of its search engine, Live Search. In order to push, or convince, web surfers that Live Search is worse it, Microsoft is offering financial interest.
By using Search Live CashBack before passing an order, customers will have their Live Search account credited with variable amount of money depending on the value of the purchased product. When the cumulated value reaches 5 USD, customers can claim to get the cash back.
It resembles some marketing action to promote websites at the beginning of the internet revolution; such business model did not really succeed nor demonstrate its real impact on mid-term.
[translation by Linathael]