Via Twitter, I just discovered the University of Marburg's The Virtual Linguistics Campus, a set of online courses covering a wide range of linguistics topics. Basically, a degree in linguistics online, roughly. The costs appear to be quite low too. A 50€ registration fee per term and 30€ per class. You could take 20 classes over 2 years for about 800€. Not bad.
I object to their categorizing psycholinguistics as "Applied Linguistics" but they have a nice set of Language Technology courses and surprisingly, a Project Management course (though it's not clear if it's specific to linguistics projects, though that would be a great class to offer).