You can conduct seminars via the telephone for up to 500 people in a very cost effective manner. The "low tech" technology is called a phone bridge. It is much cheaper than "conference calling." Your seminars could be used as both a marketing device and an income generator. The part I like about it is that I do not have to get on an airplane or even leave my home office. Here is how it works. You promote your seminar, or act as an instructor for a teleclass seminar company. The participants pay you by credit card or check in advance. After you receive payment, you give them a phone number to call. They pay their own long distance charges. At the prescribed time, the participants call the number you gave them. You conduct the seminar on the phone. You could Email or mail everyone a handout if you want.
The cost to rent a telephone bridge is very low compared to regular conference calling. You can try it for as low as $20.00 for an hour or maybe $50.00 for a month. The cost rises with the number of participants that you are able to handle. I will have more on this topic later.