Youdata is an innovative website with a sleek interface and a brilliant concept. On signing up they ask you to watch the ads from their clients and in return award you money. You will need the following for sigining up - A cellphone number and an email id. Every week they deposit the amount you earned into your paypal account. That means you'l need a paypal account as well to earn money on youdata. But it is a neat way to make some money. Thanks to Bella Casa for telling me about it.
Blockbuster usually offers 1000 mypoints if you sign up for the trial AND become a paying member, but this time I'm told they are offering selected members a chance to earn 1000 mypoints just for signing up( you don't need to become a paying member). If you haven't yet used any trial offer from Blockbuster, watch out your Inbox carefully for this cool offer. I'm normally wary of trial offers but a reputed company like Blockbuster shouldn't be a problem in that regard, just don't forget to cancel your account within the 2 week trial period.
Start Sampling is a nice site if you'd like to get some cool samples. I've used them to get many samples and magazines. Its easy to sign-up with them, and you can request any of the available samples. The only constraint is that you can request only one sample a day.