The other day while web surfing, I chanced upon one which mentioned that Microsoft is planning to launch a cash back service where when we use their search engine to search for a product and when we make a purchase from there, we get cash back.

True enough, today, I received an email from Microsoft notifying that they have just launched their Live Search cash back service. Browsing though their site, they do have some of the largest and most reputable online merchants in their database, but I am not sure if these merchants are offering the best prices.
Of course, it is up to us to compare, but sometimes, shopping online, you get caught up in the hype and end up with something that is slightly more expensive than you would need to pay buying from a local neighborhood store.
This service, however, is only open to legal residents of the United States. And there are quite a long list of restrictions so if you are interested to purchase via Live Search to be eligible for cash back, which I could not find the quantum in their Frequently Asked Questions, do read their terms thoroughly.
