College Photographer of the Year
Due every October
http://www.cpoy.org/?s=Home
Nikon Photo Contest International
Due every November
http://imaging.nikon.com/products/imaging/activity/npci/npci2010-2011/index.htm
National Geographic Your Shot
A continuous contest throughout the year
http://ngm.nationalgeographic.com/your-shot/your-shot
Atlanta PhotoJ Contest
Best of Photojournalism NPPA
Hearst Journalism Students
Monthly Clip Contest NPPA
NPPA Short Grants
Photo District News
Pictures of the Year
Student Quarterly Clip Contest
TV Quarterly/Solo Video NPPA
World Press Photo
Most contests want to receive images via ftp. Learn how to use FTP to move images.