There are multiple ways to drive traffic to your website. One such way is to promote the website by posting ads in free classified ads sites. There are a number of classified ads sites allowing you to post ads for free. But, majority of them are not safe to use as they either do not receive heavy traffic or they are full of spam. If you choose a spam hit site to post your ads then the users will be in trouble and it will create a negative opinion about the product. Hence, one should be very careful in choosing the free classified ads sites. To ease your selection here is a list of top 15 free classified ads sites that are worth discussing.