The Commissions extension for Sell Media allows you to reward contributors with sales commissions for specific media sold.
Example Use Case – Photo Agency
Imagine if you ran a small photo agency or collective and you wanted to reward each photographer with a percentage of the total sale for his/her photos. The commissions extension makes this all possible. Simply have your photographers register for a user account on your website (or create a user account for them if registration is closed). Then, on each image uploaded, specify which user should receive sales commissions when the image is sold. At the end of the month, you can export all commissions into a Paypal Mass Pay file to pay all sales commissions at once.