To respond briefly to the question I have to say that adfly is a URL shortener service  that will allow you to make some extra money with links that you have in a website or social network. To be more precise, you get paid to share links on the Internet.
How AdFly Works:
People pay to advertise with adf.ly, and people who shrink their links with adf.ly get a cut of the profit every time someone clicks an adf.ly shortened link. Important Adfly pays when you reach the minimum limit of $ 5 and paid each month on the 5th of course if you reached the minimum payout limit.
How to open an account:
1. Firstly, you need to go to adf.ly to register for an account by clicking “Join Now”.
2. Fill up the application form. For the column “Account Type”, choose “Link Shrinker: Create shortened URLs and earn money”.
3. Then adf.ly will send an email to you to activate your account. You must do it within 3 days.
4. In your email you it will enclosed an activation key. It is just a combination list of numbers and letters.
5. Once you click on link to your confirmation webpage, it will open a blue color page with title “Account Confirmation” with an empty box for you to fill in the activation key as mentioned above.
6. Copy the activation key and click “submit” button.
7. Then immediately your adf.ly is successfully confirmed. Click on “click here” to log in to your newly signed up account.
8. Now log in and update your account details.  Now you post them or send them to people as you usually would with any shortened link. adf.ly will show an ad just before the shortened link loads.
You can find out more about details about the publisher rates from here.
Once you have earned $5.00 USD, it will be  automatically bank into your account on the first Monday of each month. adf.ly will pay you through either PayPal or AlertPay.
    Earn Money With adf.ly Full Page Script
If you have a site with thousands of links, you don’t need to shrink one by one. You just copy and paste the code called Full Page Script on to your webpage or blog and the links will be updated automatically. Here is another full page script which I found it from its forum. Copy and paste it into your BODY tag of your site. Remember to replace the adfly id xxxxxx to your own id.
<script type=”text/javascript”>
onmousemove = function adfly() {
adfly_id = ‘xxxxxx’; //replace with your ID
for (var i = 0; i < document.links.length; i++) {
var hrefer = document.links[i].href;
if(hrefer.match(“adf.ly”) || hrefer.match(“javascript:”)|| hrefer.match(“#”)) {
document.links[i].href = document.links[i].href;
}else{document.links[i].href = ‘http://adf.ly/’ + adfly_id + ‘/’ + document.links[i].href;}
}
}
</script>
For those of you who use Blogger, you have to parse the script so it can work on your template.
    Website Entry Script
Then there is another set of code called Website Entry Script for those of you who want to earn money when a visitor simply enters your site. Take note. If you advertise your website or blog on a PTC site, then you are NOT allowed to include this Website Entry Script that page of your site.
My personal view on making money with adf.ly is that you can make some good extra passive online income if you have lots of traffic to your site.
Still interested? Then quick go over to adf.ly and register yourself an account and start earning money online now.
Click Here To Register adf.ly Account.