FX and AMC don't really offer streaming of their shows either
Aren't all their shows available on iTunes, Amazon, etc.? I would also expect them to be included in TV Everywhere when that manages to fully roll out.
Mad Men, Breaking Bad are. The new episodes are released right away. 4 seasons of Mad Men are on Netflix, 3 seasons of Breaking Bad are. I can't speak for FX and AMC's other shows.