Sorry to break this to you, but many of the advertised rewards dont work. Many people have had issues collecting, including with some of the paid ones. I am currently fighting with vistaprint to get a refund for an order for products that promised 119 tokens on purchase and didnt credit me the tokens. I have lodged a complaint with our consumer affairs department as I actually spent money and did not get what was advertised. So I suggest you view those offers with some scepticism. The videos work fairly well and are low risk, but most of the others I would not recommend. The software download offers require you to install toolbars and change home pages etc and many cause system issues on install so once again I would not recommend them. Hope that helps and good luck.