There is no faster way to get highly-targeted traffic directly to your offer than Google's AdWords program.
People try to make the AdWords program look complicated when it's really nothing more than a classified ad that runs on a network of web properties. If people read the ad and click, you pay. If they don't, you don't.
The path to getting clicks is exactly three steps long.
Step 1. Choose the right keywords that will cause your ad to appear.
Start by reviewing your web site and making a list of all the keywords and/or phrases which best describe your product or service. Keywords are not case sensitive so don't worry about it.
Then start feeding them into a keyword search tool so you can come up with other related keywords that you didn't think of. Google gives you a free tool that works well.. Overture's Search Suggestion Tool is another good keyword research tool. If you really want to come up with dozens of great keywords, and gauge the competition for each keyword on the search engines, check out WordTracker. They offer a free daily trial or you can pay for a subscription to get all the research tools.
Once you have your keywords down pat, you're ready for step 2.