If you're looking to hire a logo or icon designer, Dribble is the place to be. However, crafting the perfect 300x400 teaser has little to do with web design.

Do you want to hire a window decorator, or someone who will help you solve the hard problem of making your app easier to use? Think carefully. You might not want a real web designer. A graphic designer is certainly a safer hire--they won't futz with your codebase, anyway!