Hi Fabiana! Resort rates for 2014 are out, and you can definitely make reservations at the Walt Disney World resort hotels now. I just checked the
online booking system and the Wilderness Lodge and the Contemporary resorts appear to have availability in January, so if you haven't checked online since last week, try again now.
January is generally a great time to visit Disney World since attendance levels in the parks are fairly low most of the month. The only times in January during which you may find less availability at the resorts are dates around the New Year and Martin Luther King holidays and around the Walt Disney World marathon, which is held in the second weekend of the month.
If you are still having trouble finding availability at your preferred resorts online, I recommend you call 407-939-7675 so the friendly cast members can assist you in making a reservation.
Come visit us again at the Moms Panel if you have more questions! We'd love to help!