Good places to advertise in

Hi everyone

Can you advertise a business on sites like Craigslist , Kijiji , used everywhere or other similar sites ? Other possible places that have just come to mind are Amazon , eBay etc.

Years ago I tried to make a website work for me but I cannot get Any Good traffic or a good ranking. So now I am going to try Clickbank .

If anyone has any good suggestions of places to advertise or any other suggestions please let me know.