Zipcar, a provider of cars on demand by the hour or day, announced it will expand its Zipcar for Universities program to more than 120 campus communities. This fall, Zipcars are being added to nearly two dozen new schools, more than doubling the fleet of vehicles on campuses throughout North America.

Zipcar's new partners include Dartmouth College, Vanderbilt University, Rice University and University of Miami. In addition, Zipcar is adding vehicles and locations at more than a dozen existing partner schools.

During the past year, Zipcar launched new applications such as text message options, a mobile reservation site and a GPS-based widget for the iPhone 3G. Zipcar reservations can also be made from a mobile device.

This year, businesses, government and transit agencies also turned to Zipcar, with Zipcar for Business topping 8,500 accounts throughout North America and the UK. Government agencies such as New Jersey Transit, the City of Philadelphia and the US House of Representatives have also utilized Zipcar.