"Wrong" is perhaps not the most accurate word. I most often found information to be either extremely oversimplified such as to be unhelpful, or outdated and no longer relevant for current systems. Although, yes, some things were just wrong.

There are courses and presentations and books, but there aren't many websites or articles — and that's the learning style that works best for me. Undergrad programs will teach a lot of what I covered (though certainly not all, and it really depends on the program) but I believe that knowledge should not be gatekept on going to college.