We haven't gotten all the bugs sorted out of it and many people do get irritated at receiving mail they aren't interested in. BUT, email is cheap, conserves natural resources, and doesn't pollute the environment. That's a combination of strengths that will ultimately overcome all challenges in a very, very big way. Finally, write articles for one or more of the thousands of new on-line publications. The Net is about information.
People come to their computers to learn something.
Use what you know about your business to be the expert that many people are looking for. I hear you exclaim. You don't have to be. If you can write a page of instructions on how to do something, you can be a published expert. Take a cue from the many celebrities and famous business executives who write books with the help of a professional author.