mariog21 asks: >> If you respond to someones ad. how long is a fair amount of time to wait for their response, before searching for other accomodations? I'm new to the site and I don't think it would be good form to respond to multiple ads at once.<< ==============================================
Well, it's the holiday season, with school vacations, family travel, etc. People may be on the road and/or just not bothering with their computers. I'd let the New Year frenzy pass before expecting much in the way of replies -- and a week beyond that, even.
While your sense of courtesy and consideration for others is commendable, I personally see nothing wrong with responding to multiple ads. If folks posted an ad in the first place, then they expect to (or should expect to) respond to inquiries. I'd feel free to "ask away" of any every ad of interest to you, since some won't ever pan out anyhow, for one reason or another. Good luck.
KC