misa-sensei is a native speaker and an excellent teacher. i've learned so much from her videos over the past few years; she explains things in a way that’s incredibly easy to understand
learn Japanese with podcasts
if you like podcasts and learn more by listening then this can be useful!
marine biology
facts about the natural world from a passionate student
a very efficient way to study, anki uses flashcards to learn through memorization and repetition
The Skeptic's Dictionary
i just recently discovered this site; it features definitions, arguments and essays on hundreds of strange beliefs, amusing deceptions and dangerous delusions. also dozens of entries on logical fallacies, cognitive biases, perception, science and philosophy