"That's Not My Phone. That's My Tracker." by Peter Maass and Megha Rajagopalan
"Do Not Track? Advertisers Say 'Don't Tread on Us'" by Natasha Singer
"Consumer Data but Not For Consumers" by Natasha Singer
"Mapping, and Sharing, the Consumer Genome" by Natasha Singer
Optional:
"Your Attention, Brought to you in an Instant" by Natasha Singer
"The Data Driven Life" by Gary Wolf
"If You Liked This, You're Sure to Love That" by Clive Thompson