Just finished delivering another Teleseminar. What a great way of communicating! We use www.nuba.com for this.
Could you offer prospective customers a teleseminar? All you have to do is to provide some useful, helpful and interesting ideas, during a half hour telephone presentation.
You could announce this via your website, newsletter, blog etc.
Incidentally, my monthly teleseminar is for Navigator and Mentor members of The Marketing Compass, my marketing mastermind group for small business owners.
All the best