I highly recommend you to join some paiid surveys sites to earn some extra money ,here are some of my suggestions :
How to Earn Money with your Website
Place the BidVertiser text ads on your website and make money online by getting paid for every click.
2.Earn money through Custom Builds
A ‘custom build’ of a program is a special edition you can offer for download on your site, and which has your affiliate information built into it. This means that when the user clicks ‘register’ or ‘purchase’ in that edition of the program, he/she will go directly to the order page using your unique affiliate ID, making sure you receive the commission for the sale this user generates
Earn money while displaying advertisements on your Website. When visitors click on these ads, Google pays you. Along with targeted advertising for your content pages, you can add a Google search box to your site and show targeted ads on search results pages.
4.MIVA Website Monetization
Customised solutions to monetise website traffic, such as: pay-per-click advertising, add a Web search engine to your site and earn revenue from every click, earn revenue from users leaving your site.
Opinion Get paid for sharing your opinions and ideas in online surveys. Win money in monthly drawings just for being a member. Win money in drawings when you fill out a a short questionnaire. Earn cash each time you complete a survey (a longer questionnaire).
Earn cash by filling out surveys and referring friends.
In return for participating in online and/or telephone surveys, you receive Amazon.com gift certificates or PayPal cash.
$50 for filling out 25-minute surveys, $150 for participating in focus group panels for 30 to 60 minutes, earn free trips, free diners, get freebies given to you with each survey completed.
A free site where users can share experiences and learn about online paid survey opportunities. The site includes a user blog, polls, a user review section, and editorial reviews on legitimate paid market research opportunities.
Opinion Outpost is an online community where people like you can come to share their opinions by participating in survey research. In return for your valued opinion, you can earn opinion points which can be exchanged for cash and prizes.
Get paid for responding to messges and participating in surveys.
SurveySavvy.com Earn cash by filling out surveys and referring friends.
Over 500 survey companies offering paid surveys in cash and prizes.