"Ghostbusters" is one of my all-time favorite movies. It has everything: ghosts, a giant marshmallow man and a song from Ray Parker Jr. that sounds suspiciously like a Huey Lewis song. The film was certainly ahead of its time, but not just in terms of combining special effects and comedy. If you look a little closer, you can see that Peter, Ray, Egon and Winston also gave examples on how to improve your online marketing performance. That's pretty impressive, considering the movie came out in 1984! Let's take a look at the five ways the Ghostbusters can help improve your …