One of the problems with sites on the Net that only sell ads or just collect email addresses to resell, is that the info on their pages is often meant to cause you to provide an email address and name or phone number for them to sell.
I'd spread the word to use actual real estate professionals' sites rather than ones where the correctness of the data is not as important as gathering and selling your name and email to the highest bidders.
(Please note: when you choose an answer as a Best Answer, or at least give a thumbs up, it helps those who answer questions here.)
If one is reluctant to be barraged with unwanted contact from the agent in the future, one can always use mail filters or create a dedicated email address to filter unknown correspondence.
Of course working with a knowledgeable advisor who can also run interference for you could solve your problem as well.
On my personal site, anyone is able to seethe full listing as well as photos. Also realtor.com will show all my photos.
Which site did you have difficulty with?
I'm an EBA and I wrote a book called "Buying a Home: Don't Let Them Make a Monkey Out of You". It will be the best $6 you've ever spent. Follow the link below.
Best of luck!