The rules are pretty basic, just submit your art to the appropriate folder. Photos go in the "photographic" folder. Digital art goes in the "digital" folder. Drawings and paintings go into the "traditional" folder. Crafts go into the "artisan crafts" folder. And how-to's go into the "tutorial" folder. Submissions in the wrong folder will be declined.
The submission limit for each folder is 5 per week. The Tutorial folder has a limit of 10.
Please do not submit any offensive material or mature content. Also, please do not submit to the Featured folder.