One way is via affiliate programs.

Here's a list, based on my own experience, of the best ones.

#1 AffiliateFuel.com :!: - Excellent customer service (The best), high lead payouts, monthly payments (On time or early, every month).

#2 CJ.com - Excellent customer service, most advertisers want a, "sale" rather than a lead, monthly payments via direct deposit on or around (Depending on weekends) the 20th of each month.

#3 Websponsors.com - Excellent customer service, tons of, "lead" offers, marginal lead payouts, and direct deposit on the 1st of each month.

#4 Metarewards.com - Excellent customer service, many, "lead" offers, as well as, "sale" offers. They also allow incentivization. They're checks arrive, on or around the 5th of each month.

#5 Valueclick.com (Formally Onresponse.com) - So so customer service, mostly, "lead" based offers with payouts, at times, much lower than the above networks, but...they pay and they pay on time, every month around the 5th.

#6 Offersquest.com - Excellent customer service, tons of, "lead" based offers with high payouts. Dunno about payment yet, as I just joined a few months ago (But I was referred to this program by someone whom I've trust for over 4 yrs in this business).

#7 TafMaster.com - Excellent customer service, earn money by simply having a, "Tell a friend" link/banner on your site. Payments are ALWAYS on time or early.

Others...

Linkshare :roll:
Befree :?
Directleads :roll:

Plus, there are TONS of independent offers out there. You just need to track em down.

I hope this helps.

Paul