I stumbled across this really cool PDF by Andrew Kantor (www.kantor.com) in relation to a post about trying to photograph the interior of well known public building. I found it to be very interesting and for anyone who is taking their photography a bit more seriously (i.e. considering trying to make some money at it in one way or another) this is a very wortwhile read:
Legal Rights of Photographers - at this time Version 2, from December 2008 - http://www.kantor.com/blog/Legal-Rights ... aphers.pdf
FWIW,
Matt