I spend a lot of time on conference calls. In the past, these were arranged through some outside service like Qwest. These services typically charge any where from 4¢ to 30¢ a minute per caller. But, for me, those days are history.
Recently, one of the boards I am on started using FreeConCall.com. As the name suggests, it is completely free. When you register, the service assigns you a phone number and a three-digit code to use whenever you want to hold a conference call.
There is no scheduling, reservation, or operator assistance required. You simply have everyone call into the number, enter the code, and start the call. The only expense is the regular price of a long distance call.
Simple. Elegant. Free. What more could you ask?