Most online services let you upload images.
Since FASO is an art service, we decided to change the wording in our current redesign.
Previously, our upload images buttons were kind of buried in the portfolio sections of our site. Since we believe Sharing Art Enriches Life (sm) we decided that uploading art is the most important action that happens in the FASO network.
Hence we changed the name of the button to "Upload Art Now" and moved it prominently to the top-right toolbar of nearly all FASO screens.
We haven't had anyone writes us confused on how to upload their art since we made the change!
FASO Founder, Software Craftsman, Art Fanatic
PS - You can still upload non-artwork images in both the "Upload Art" section, and from within the "images" part of the control panel.