MixerCast launched on Tuesday in public alpha. The very sleek site is designed to allow anyone to take content from their desktops and across the Internet and mash them up to create their own visual collages of sorts. But here is a twist. Users can get paid for their work by choosing which advertisements they want displayed on their creations. While mash-ups aren't new, certainly, mashing up advertisements advances this whole notion of taking control of the viewing experience. Leading the startup is Jennifer Cooper, who ran Yahoo Platinum and oversaw Yahoo Broadband, and has apparently mashed up her experiences with Adarbad Master, an engineer who created the service, after receiving $2.6 million from ComVentures back in December 2005. Cooper ... [ Read more ]