Re/code: NBCUniversal is close to a deal to invest $250 million in BuzzFeed, in a transaction that will value the booming digital publisher at around $1.5 billion. Sources say Comcast’s TV and film unit has a “handshake” agreement with BuzzFeed, which raised $50 million last year at a $850 million valuation. NBCU also is negotiating to invest in Vox Media, in a deal that would value Vox at $850 million. Last fall Vox Media raised money at a $380 million valuation.