Here are some simple guidelines to help you create a good banner ad.

1. Keep it simple. Don't clutter your banner ad with more information than is needed. Keep your language simple.

2. Animated banner ads are accepted (.gif only), but they must not cycle more than 3 times and cannot have more than 5 frames. If you do submit an animated banner that does not meet these requirements then your banner may be subject to editing.

3. Neatness counts. Don't use colors that are impossible to read. Save your ad in the highest jpeg and gif settings. It's better for me to go back in and take the settings down a little than to take the settings up, because the latter doesn't work so well at all.

Just remember that your banner should represent what you want people to come see and that it will be displayed on other people's sites who are generous enough to donate their space.