News aggregator Upworthy is rapidly becoming a viral hit machine for progressive online content. Its staff searches for “stuff that matters,” composes multiple related headlines to test the waters, and selects the top performers, which it then promotes via social media. The simple model is reaping impressive results, surpassing 50 million unique visitors in October. Now the company is launching a global health and poverty section backed by the Bill & Melinda Gates Foundation. Continue reading Upworthy.com Partners with Gates Foundation on Global Issues