#1. Lemonade.com

Making extra cash through lemonade-stand sales isn't just for kids anymore. You, too, can now get in the game at Lemonade.com by setting up a virtual "stand" filled with products you'd recommend to friends. Add the widget to your Facebook, MySpace or blog pages and when purchases are made through your site, you receive 5% to 15% of the cost of the item. The stands are a win-win for everyone: Online retailers get free advertisements, social networkers are recommended good products, and you get paid if the deal goes through.