At the risk of responding to a potential spam post (I already edited the topic and removed the signature, but there are valid questions here)
This is NOT OR, it's FreeRealty or FR
There was (and may still be) the idea that we could use some kind of database that links multiple sites together pulling listings from other FR users, but it didn't get enough traction to get completed. I still have some working notes on it and may get back to that some day
django... I do not use - maybe someone else can chime in
Lead developer FreeRealty
Other claims to fame: http://www.rwcinc.net
Enrolled Agent, Licensed to Represent Taxpayers before Exams, Appeals and Conference divisions of the Internal Revenue Service.