Google Adsense is a great way to start off making money from your website.

It is free to sign up and easy to implement. Once you have signed up you need to make sure you fully understand their terms and conditions. Generally you are allowed a maximum of 3 google adds on a page, you are not allowed to click on them yourself and you cant put them on inappropriate sites/content. ( adult content..etc.)

One of the best things about these adds is that once you put them on your website – thats it. Each time someone goes to your page or the page is refreshed a new add is displayed. While most of the time the adds displayed are suitable but if you find that one you dont like showing up you can filter it out.

It does take a bit of experimentation with what colors and sizes to put and where and this does depend on the type of website you have. If you place big adds ( this is a great size banner and one that I use the most – 300×250 pixels) above the fold in a prominant place these are more likely to be noticed and clicked on, while adds at the bottom of the page. See here for an explanation of the various banner sizes available.

Google has an excellent help facility and forum that answers any questions you may have about Adsense.