Just saw this at a different forum. Very tempting.
Go to bing.com. Go to shopping. Search for laptop. Tigerdirect will show up on the screen on the right hand side with a 15% CB link.
Click through your cashback account log in and you should be good to go.
Thinking about getting a 70-200mm F/4 non-is at $710 - 15% or 580ex II for $500 - 15%.