Is there a way to charge people who attend a teleseminar using this service?
Yes. The teleseminar lives on secret page until you tell someone about it. You basically have to set up some kind of shopping cart system and on the Thank You page, and usually you have control of the Thank You page and the Thank You e-mail, on the control of the Thank You page, you put the link to your event, to your private event so only people who have paid can get onboard. Now, of course, people can share the link, there is no way of controlling that but by in large you will be able to charge for the event and make money.