The holy grail of search engine optimization services is getting front-page, organic search engine rankings. It is also a lot of work and a time consuming process. And, most of the time, you won't succeed on making it to the front-page for competitive keywords.
So, with all that potential for failure, why not run a series of tests on your key words before getting into the down and dirty SEO strategies of building links or optimizing separate pieces of content? It's not quite as hard as you will think, and chances are, you're already doing a version of this test as part of your business.
The perfect mechanism for such type of testing is already in place and you likely already use it: Pay Per Click advertising. The idea is to drive traffic to a landing page with a basic opt in mailing list through paid advertising so as to test whether a specific set of keywords could be profitable.
If, for instance, you run this test campaign for 1,500 visitors, and just 3 or 4 of them convert, then that particular keyword perhaps is not worth the hours upon hours of optimization work you had intended to do. Yes, it will cost you money initially to run the PPC campaign, but in the long run you will be able to exactly determine which keywords to focus on, that would make you cash in the end.
The main pitfall to prevent while running this test is confusing traffic with prospective earnings. If you run a targeted PPC campaign and drive a lot of traffic instantly, you might think to yourself that these keywords should be profitable because traffic has arrived so quickly.
This isn't necessarily the case. Traffic is only valuable if the people making up that traffic (or at least a percentage of them) perform the actions required to make you money. If you are running a web-site for a hobby and just have to share content with likeminded people, then the more traffic the better. But if you are running a business, the more increase targeted traffic the better. Using PPC campaigns to test the potential profitability of keywords prior to launching a full-fledged search engine optimization project can be one of the most useful tools in your arsenal if used properly.