I'd try things like youtube, make killer videos and get a bunch of subscribers, you can make BANK on youtube doing shit you'd already normally be doing, except now you're recording it.
Though you probably have to already have an interesting life to begin with.. But some of the most popular channels on youtube are filled with FUCKING IDIOTS!! ex. Fred, Smosh, annoyingorange, etc.
So either be really really cool and smart and interesting, or be incredibly retarded, annoying and mind numbing. Or just have BIG TITS and point the camera right at em when you talk about whatever bullshit you decide to talk about.. (there are tons of chicks who do this and make BANK doing it, and they don't talk about SHIT! everyone tunes in for the tits, boggles my mind because most of them are butterfaces with average racks when THEY'RE USING THE SAME INTERNET that has access to billions of better tits, totally naked..) I'm guessing it's all 13-17 year old guys who still have the parental control lock on or something.. idk.
Build shit you can sell online. Turn a hobby into monetary profit, if you draw, go digital and get on DeviantArt, conceptart.org, cgtalk.com, etc. You can sell prints and make tons of scratch like that.
My best advice would be to utilize the internet, think of something other people haven't thought of. Outside the box.