Okay little one, Penske Media Corporation is a big company that owns other smaller companies that do things like make movies, TV shows, and websites. Just like how you might have your own toys like dolls, blocks, and puzzles, PMC has its own toys like Variety magazine and Rolling Stone website that they get to play with and make money from.
PMC is like a big grown-up who wants to have lots of fun by buying and playing with all these toys. And just like how you might have helpers like your parents or teachers who help you play and learn, PMC has people who help them run their toys and make them even better.
Now, why do they want to do this? Well, they want to make lots of money so they can keep buying even more toys and have even more fun! They do this by selling ads on their websites and magazines, and by getting paid for producing TV shows and movies that people love to watch.
So, that's basically what Penske Media Corporation is all about - a big company that owns other companies that make cool stuff and make money doing it.