The current issue of the National Geographic Traveler Magazine has a wonderful long article on Rome. And if you go to their web site (google) there is a list of free things to do in Rome. A must-read and loads of fabulous photos as well.
Thanks Maryann! I will look for it :)
The story is in print only, but the Free Rome tips and the photo gallery are online as well as in print:
http://www.nationalgeographic.com/traveler/photos/rome0807/rome_gallery.html
http://www.nationalgeographic.com/traveler/deals/freerome0807.html
Thanks again Maryann!
The article lists the Roman Forum as a free sight and as of March 2008 it is no longer free. It is part of a combo ticket with the Coliseum and the Palatine Hill.