RevResponse 4

Marketing itself as a viable Adsense alternative, RevResponse is not a CPC-based ad network. You are paid commission by RevResponse for giving away free products and services. You can create widgets, text links, or banners that offer free products. If people take you up on the free offer, you will get paid by RevResponse. Compensation is between $1.50 and $20 for each successful giveaway (where $1.5 is an absolute minimum), and minimum payout is $25.
Can be used together with AdSense.
International members are welcome.