I offer no warranty on the content of the sites linked to in this post but I offer them for review for those visiting here and looking for employment in the fire service.
I can tell from my visitor logs by the search stream that fully 1/3 of the visitors here are looking for firefighting jobs. Some of the links on the side will send you to firefighter job sites as well.
Fire Employment looks interesting with hourly updating of job listings across the country.
Strengthcats is an interesting site that offers physical ability evaluations online.