This includes the solicitation, the survey itself and the creation of the results database. The vast majority of the responses will be received within 4 days. Avoid sending the solicitation to respond on a Friday, Saturday or Sunday. That's about all there is to it. You'll be surprised how easy it is and how quickly you can generate meaningful answers to your questions.
Lists Listed below are a few direct mail list agencies that rent e-mail lists.
Perseus offers this list as a free service to anyone who is interested, but does not warrant and is not connected with any of the above companies. You may want to research other list agencies as well.