1. Twitter’s twin superpowers: The magic of obsession and the lure of community (Mathew Ingram / GigaOm)
2. NBC News Digital to launch JFK anniversary site with 275 videos from Brokaw interviews (Alex Weprin / Capital New York)
3. Why Getty Images is partnering with Pinterest (Sarah Laskow / Columbia Journalism Review)
4. Twitter’s IPO: Less volatile than Facebook’s and less profitable (Seth Fiegerman / Mashable)
5. How to make the most of picture-based native ads (Tobias Peggs / AdAge)