So I have a site. On this site I occasionally buy a product, use it for a certain amount of time, then write up a pretty extensive review of it. Like anyone else, I then link to a place to buy this product and include my affiliate id in the link.
Now, I've been playing around with adwords for the first time ever recently, and I think these types of extensive reviews would perform well.
But, there's a problem that I can't figure out how to get past. See, currently people are getting to these review pages through other methods besides adwords. From other parts of the site, search engines, links, etc..
So, when I check my affiliate account and see a sale was made, I have no way of telling if that sale came via adwords or some other means. So when I spend money on adwords, I'm sorta doing it blindly because I can't tell if the adwords traffic is converting or if it's the other traffic to this page that's converting.
So I guess my question here is, what can I do?
Thanks in advance for any help.