Smosh: Just two normal guys, who randomly started making funny videos for youtube and got so many hits that people obsess over them. Now how did that happen? I understand why people obsess over them, just.. how did they get so big, ya know? YES! Their hilarious, but another question is: how did they get all of those "GREAT" ideas?

anybody have any answers to those questions?

You post a video on YouTube, and someone accidently finds it while searching for something else. They think it's funny, so they show their friends or spread the link. The friends do the same. Eventually, everyone sees it.