iStockphoto has recently unveiled a new referral programme that rewards participants with their choice of $20, 20 credits or 20 percent commission on all first-time purchases by customers they generate. The programme is open to all iStockphoto members and participation is simple. The agency is providing several plug-and-play email templates and banner ads or participants can create their own. They can also promote the program via social sharing links to Facebook, Twitter and Linkedin found below every iStock image. Any time a participant shares an image, their referral code is automatically embedded. If the share results in a new sale, payment is awarded. Customers who have been participating in the existing referral programme simply have to agree to the new terms and conditions and update their links to continue earning payouts. For more information, visit the website below.