The concept for Spider-Woman originated as a way to insure copyright in order for Marvel to prevent rivals from profiting off of a character with a name similar to Spider-Man (see Captain Marvel, Power Man / Girl, Wonder Woman / Man). This was also initiated to counter the Web Woman animated series that debuted around the same time. The first Spider-Woman debuted in 1978's Marvel Spotlight #3.
The first Spider-Woman, Jessica Drew earned her own animated series in 1979. In the series, Jess was bitten by a poisonous spider and saved my an experimental serum which gave her super powers. Spider-Man made a couple of guest appearances during the series' 16 episode run.
In the 1981 Spider-Man and His Amazing Friends animated series episode, Triumph of of the Green Goblin, Firestar went to a costume party dressed as the Jessica Drew Spider-Woman.
In the 1990's Iron Man animated series, Spider-Woman Julia Carpenter appeared as a member of the Force Works team. In the comics, Julia was the second Spider-Woman with a costume similar to Spidey's iconic alien costume. It sure would be great for Spider-Woman to claim her spot in the expanding Marvel movie universe. Fingers crossed.