Exposure determines how light or dark your photo is. Try different exposures- usually underexposing a sunset photo is better than over exposing. Most cameras do it automatically and some have ways to manually adjust the exposure as well.
Learn more about exposure: http://www.cambridgeincolour.com/tutorials/camera-exposure.htm
Shoot with clouds- they can reflect light and make interesting patterns for a better composition.
Read tip #10 and #15 for more info about clouds: http://improvephotography.com/416/30-tips-sunset-photography/
Focus on the sun, but is is OK if people are in the photo
Make sure the horizon is straight.
Remember- holding your camera horizontally can help capture the landscape.
You don't have to be in a "perfect" location to participate. Driving? Pull over and snap a shot. At home? Take a photo out of your kitchen window.
For knowing when the sun sets, go here: http://www.calendar-updates.com/sun.asp
Get creative! Note: Stay 20-25 minutes after the sunset if possible. There will be a "second sunset" with many more vibrant colors.
Note: Stay 20-25 minutes after the sunset if possible. There will be a "second sunset" with many more vibrant colors.