How to make money from the photos on your phone

Most of us keep hundreds of images on our phones. But not many people are making money off of them.

Megan Betteridge, 23, a recent college graduate who started selling stock-photography last January as a side hustle.Less than a year since she first put images on Shutterstock, a stock photo site, her side income has grown from $5 a month to more than $130, with an increase of at least $20 each month. That's a solid side hustle that she feels will only grow as she continues to post more photos.

Stock photo sites including Shutterstock, iStock and Adobe Stock are nonexclusive, which means you can post pictures on multiple sites and pull down cash on all of them at the same time. Getty, which generally pays more per photo, requires an exclusive agreement.