1: Sign up for Google Adsense and place Google ads on your site. Google will display most appropriate ads according to your content and you will get paid for every click on an ad. People are making thousands a month with this.

2: Sell ad space on your site. You could sell banner or text ads. To make more money, sell top placement or best exposure ads at a premium.

3: Charge a fee to access part of your site. A recuring fee is best. People will pay for your site content if it's valuable to them. This could be a members forum, ebooks, software, reports etc.

4: Hire out pages on your site to other people. You could also give them away for free and make money by including your ads on pages.

5: Sell your own products or services. They should be related to your audience.

Discover several legitimate ways to earn extra money online for free using your computer at home.

You probably wonder how much extra income you can make? Well, it depends on how much time and energy you are going to put in.

Here are five legitimate online opportunities for everybody to earn extra cash fast:

1. Get paid to read email

This is probably one of oldest online income opportunity. In order to get started all you need is your own e-mail address. If you have an Internet access at home, you probably already have an e-mail address too? Otherwise, you can open your own email account and receive your personal e-mail address for free at:

http://www.yahoo.com or http://www.hotmail.com

Actually, be prepared to use your e-mail address with any of extra income opportunities that I have listed in this article.

How 'get paid to read email' programs work? Simply, online advertisers pay commissions to paid email companies for sending their advertisements via e-mail to members who want to get paid for reading emails. When you receive a paid e-mail, in order to receive your cash you should click on link and visit an advertiser's web site.

How much you can earn? Not much. The paid email companies pay from $0.01 up to $1.00 per e-mail that you read. Usually more they pay, higher is their payout minimum. It means that you can request your payment only after you have earned a certain amount of money.

It really wouldn't be worth your time if paid e-mail companies didn't have referral or affiliate programs. As an affiliate you can refer new members to their programs and get paid a percentage of what your referrals earn.

Note that if you want to make serious money you'll need to recruit at least several hundred referrals. Not to worry though - there are some free ways to accomplish that, as you will soon discover. Besides, visitor to sign up conversion ratios are very high, since get paid to read programs are totally free to join!

It is very important to select only legitimate paid email companies. Here's a short list of proven 'get paid to read e-mail' companies:

i) WowEarnings - http://www.cash4offers.com/r/wowearn ii) InboxDollars - http://www.cash4offers.com/r/idollars iii) E-mailPaysU - http://www.cash4offers.com/r/epaysu

2. Get paid to take surveys

When you join paid survey programs, online merchants pay you for your opinions on their products and services. The problem is that in order to access top paid survey companies you have to pay an access fee.

Here are some top-notch web sites that offer huge databases of paid survey programs:

i) Survey Scout - http://www.cash4offers.com/r/sscout ii) Paid For Free - http://www.cash4offers.com/r/paid4free iii) Survey Platinum - http://www.cash4offers.com/r/surveyp

3. Get paid to complete offers

At moment, this is one of most lucrative ways to earn extra money online working from home. Again, online merchants pay commissions to visitors... but not for opinions, not for their ads delivered via e-mail, but for trying their products and services. The offers include credit card applications, ISP services, membership clubs, free trials and samples, etc.