Upwork: This website offers a great marketplace for selling just about any professional service. You don't need a merchant account, website of your own or anything else for that matter. All you need to do is be able to provide a high-quality service at a reasonable price. But be informed, you will have to compete with many others that are constantly bidding on open jobs.
LinkTrust has been in operation since 2002 and claims to be “the most accurate affiliate tracking software on the market.” And, it may be difficult to argue with that statement. LinkTrust features a customizable interface that allows you to track essentially any sort of advertising online and offline – cookies, pixels, server posts, host,CPA, CPC, Pay-per-call, mobile traffic. You’ll also have access to “a slew of heavy-duty reports,” filter options for traffic, top-notch support and the patented LinkTrust Remote Traffic Agent (RTA).