If you're finding good success in earning advertising revenue on your site, you might consider employing an agency to act as a sales representative to seek advertisers for your site.
Sales reps are advertising professionals who are able to work out CPM deals directly with prime advertisers' media buyers — deals that you wouldn't be able to land yourself, since experienced sales reps have inside industry knowledge and an extensive network of contacts. If you have a relatively lucrative advertising potential, this may the best way to get the most money for your ads.
However, getting a sales rep has three potential downsides:
Good sales reps won't even consider working with you if you don't have a lot of traffic and potential for a lot of ad sales revenue. Good sales reps demand a hefty percentage of the overall ad revenue for their services. Finding a good, hard-working, productive sales rep for your company is a hit-and-miss venture. You may have to try several sales reps before finding the one that is a good fit for your company.
Hopefully, this overview of the steps involved in developing advertising revenue for your website will bring a healthy dose of realism. Many sites have little advertising potential. But if yours does — and if you're willing to work hard enough to develop it — you might even be able to earn enough money to afford a trip to the beach now and then, so long as you can find the time.