TimeDriver is a service for appointment management. I have a deep interest in this category of apps, since coordinating the scheduling of demos and interviews is one of the least pleasant parts of my job. In the good old days, I had an assistant for this.
TimeDriver lets its users set up a "schedule now" button on their Web site or in e-mails. Pressing the button lets the other party see only the times that the user has made available, and it makes sure appointments are not double-booked. It coordinates the user's available times with his or her Outlook or Google calendar.
TimeDriver is launching today at DEMO 08.