There are several basic types of keywords. There are what you call your volume keywords, things like pharmacy, online pharmacy, buy pharmaceuticals. If you rank well, they will very often bring in a ton of traffic but sometimes a very low percentage of actual buyers. But that percentage, based on the amount of traffic, can be significant so you certainly donâ€™t want to avoid that. But it is also important to point out there are other types of keywords that you can aim at too. For example, you can aim at niche keywords, where there may be just 20 or 30 a month on each, but almost every one converting into a paying customer. If you are selling things like cars, 20 or 30 a month is a pretty big thing.What Ian is describing here is the “long tail,” a critical area for search marketers to mine. (There’s a great blog entirely dedicated to the long tail.) So, if you’re only targeting a handful of keywords, you’re missing the boat.