You can go with 3 popular methods, however I like personally first one.
- Create and promote your ad using Google adwords program (https://adwords.google.com/)
- Create and promote your ad on facebok (http://www.facebook.com/)
- Create and manage your ad in linked in (https://www.linkedin.com/)
For all above methods you need to pay bid amount. Each site has different policy and different program .If you are running Google adsense or advertises on your site then it is good idea to promote your site may be at margin cost you can get a huge profit . Let us see one example – suppose you pay 100 $ for the advertisement using any above methods and your site earned revenue from Google Adsense is 150 $ so you got the 50$ profit at your end .
Promote your website through online video –
YouTube.com is good medium for promoting your business or website, just add one video at least to promote your website, Make power point presentation and convert into video through the software and upload it on YouTube.com with public mode . It works a lot if really your video is views by various viewers .