Hi, Rick.
Welcome to ATP.
One way to earn acorns here is to add information and pictures to our collective plant database. The link to it is top left on almost any page of ATP. To make an addition simply type the name of the plant in the search box on the main database page, make your selection from the choices given and follow the prompts. Feel free to experiment with it, nothing will be saved until you click on "submit". Once you've made a submission a moderator will review it. Once it's been reviewed and posted you'll be notified by an automatic system message. It's fun and easy to do, and your input will help others learn about plants of interest.
Galleries are photo sections of the DB; like bloom images, leaf images, seed images, etc.