Another excellent way to bring traffic is to buy fixed price advertising. Many sites will offer monthly advertising slots to monetise their website.
This differs from banner or pay per click advertising in that a website will charge you a fixed amount per year or per month to advertise your site.
You will get the best results if you can find sites that compliment your product or service. For example, a professional car valeting site might find car related sites to advertise on.
These advertising slots may be text based ads or you may need to provide a graphical banner. Again you should avoid pay per impression deals as this is simply not good value for money.