Blogging - By including a link to your website, you can draw in new visitors from
a source that likely gets much more traffic than your website.
You can set an astonishingly little budget for internet advertising, for example.
Your main focus should be conversion so you get the best ROI possible. The search
engine will help you get your ad in front of your target market, wherever they might
be looking on the Web.
You've already worked hard to get people there.. so retarget them to come back to
make sure you're not throwing away that money you've already spent.