"Consider me extremely jealous that you are studying under Prof. Aho, he's one of the greats." If you don't mind being taught by Prof Ullman instead, Coursera

"Consider me extremely jealous that you are studying under Prof. Aho, he's one of the greats." If you don't mind being taught by Prof Ullman instead, Coursera has a course on Automata coming up https://www.coursera.org/course/automata https://www.coursera.org/course/automata