I have Google Adsense advertisements on all of my websites but it seems to take a long time to earn much money from the advertisements. I am aware of some websites which rely solely on adsense for their income and I do wonder how they manage to even generate enough money to cover the cost of their domain name. I have tried changing the placement of ads and the colour but it does not seem to have made much difference. In my opinion it is generating more traffic that is more important than changing the placement and look of the advertisements. I am working hard on trying to increase traffic to the site at the moment so I will report back if I think that it has incresed by Google Adsense income.