Another income source - if you like generating videos at a mad rate (for a living.)
"Like many of the other 20,000 content creators who have been invited to join the site’s Partner Program, he has essentially become a full-time YouTuber, a Google company man. Although partners are contractually prohibited from revealing how much they earn from the ads running on their YouTube channels, independent estimates put Zonday’s take at between $24,000 and $72,000 a year, based on a Google ad rate of $1 to $3 per thousand views (his videos are seen roughly 2 million times a month). And beyond that, Zonday says, he is able to match what he receives from Google by promoting products in his videos and by uploading advertisements himself, a capability enabled in 2009. Without anyone noticing, so-called “Internet fame” has started adding up to real money."