How Brands and YouTube Stars Are Hooking Up to Reach Millions of Millennials

It wasn't that long ago that marketers thought they were hip to YouTube by posting their TV commercials to the site and eking out a few extra eyeballs. But with the potential now to reach millions and the popularity on social media of video stars like Michelle Phan, more than 150 brands have teamed with an array of talent on Google-owned YouTube and a handful of networks to produce entertaining and engaging ads.