Does/Has anyone use, thought about using, or seen someone using their real estate web site to generate revenue outside of real estate (for example, referral link to amazon.com, or impementing adsense ads and receiving pay per click)? Granted, we are all real estate agents, and we are out to make money selling real estate, but if one has a successful web site that can earn some money using other revenue channels, why not using it? Is this legal? My concern is that, in the absolute strictist sense, could someone claim that referring a visitor to a real estate web site to buy a book at amazon and receiving a payment from amazon for that referral be similiar getting a kickback for referring a client to a lender, the latter of which we know is illegal. Thoughts?