Here is an interesting article from The New York Times on how you should best spend your marketing dollars. The following tidbit is particularly telling:
“Testing strategies makes sense. Testing creative solutions — with friends, friends of friends, kids, co-workers you stop in the hallway, focus groups, etc. — can lead to a watered down final product. When you do seek outside opinions, be sure to share objectives, strategy, target audience and key messages. Otherwise, the feedback can be extremely subjective.”
In online marketing, much like traditional marketing, testing is key to success. Give it a shot a see for yourself. Try Google Website Optimizer and see how your landing pages are performing.