On the letters page of Marvel Team-Up #101 (1981):
GCD, no Wikipedia, no way to tell who had starred in all of those earlier MTU's you might have missed, short of scouring back issue bins (OK, OK, Spider-Man was a pretty good guess for most of them...). And the villains, too!
So thank you, Marvel Team-Up #101, for helping us lust after comics that we hadn't read yet!!