Survey Sites are a good way to earn extra cash although you have to be patient and let the cash build up. There are dozens of companies looking for feedback on a manner of topics. You will paid typically 50p to £1 for a survey. If you can spare twenty minutes a day it's a good idea to sign up to four of five. You Gov is the most famous site. They send weekly polls that are often fun to complete.
http://www.yougov.com/users/registrationintro_ref.asp?refid=462937&jID=3&sID=1
