[stephenboyd]

http://remoteok.io is the most extensive that I know of. It aggregates from other sites. There are 22 listings from the past 24 hours.

http://workingnomads.co is a curated remote jobs board with fewer listings than remoteOK. There are 9 from the past 24 hours.

Both of those only let you search by title, rather than the details from the descriptions.