There are lots of method by which you can increase your site traffic like you can advertise your site on Google Adwords and some other ads network and for this you have to pay per click . There are some other options in Google Adwords as well which lets you pay not according to clicks but according to page impressions . So you have the option to select any one of them .
PPC advertising is very necessary for new sites to get traffic and to get exposure , new sites are unknown to the general public and to make the site popular you have to advertise the site and this can only be possible by getting ads on PPC Company .
This will not let only let you get traffic only but by this method will boost up your sale as more and more customers will be coming to your e-commerce site which means an increase in sale !
PPC advertising is the best method to get exposure of the site and I am use this for all of my new sites , If you think your site is new which need an exposure then do what I have suggested and you will feel the difference !