So far that's mildly helpful since you can also find parking lots with programs like Google Earth. Parking Carma differs in that they are signing up lot owners to provide real-time information about available parking spaces. Drivers who sign up for the premium service can use the net or a phone to call up and reserve and pay for a parking space at the closest available location. The service will provide detailed direction on how to get to the lot. The service will cost $9.95 a year plus $2-3 in addition to the parking fee for each reserved spot. Anyone can look up the location of parking lots on the Parking Carma site free of charge.
[Source: Parking Carma]