Google, Facebook Call an Ad Tech Truce: DoubleClick Is Coming to the Facebook Exchange

Facebook Brings Ad Tracking to Your Phone

Digital-Ad Vet Mike Barrett on Facebook, Ad-Tech IPOs and a Cookie-Free Web (Q&A)

Foursquare Opens Up Its Self-Serve Ad Platform

Twitter Gets Its Strongest TV Tie-Up So Far, With an Ambitious Comcast Deal

Facebook Says It’s Pretty Good at TV, Too

How Twitter’s Ad Business Went From Zero to $500 Million in Less Than Four Years

Facebook Says Its Mobile App Ads Work, So It’s Making More of Them

Marissa Mayer Knows Larry Page’s Superpower

How to Launch a New Photo App: Wait for iOS 7 Launch, Try to Get Featured. Then Hope.

More Tech IPOs: Criteo Files, and Rocket Fuel Is Ready to Start Trading Friday

WhoSay Brings Dirt-Free Celebrity News, Created by Celebrities, to Your iPhone (Video)

Upworthy Raises $8 Million for Clickbait With a Mission

Does Twitter Have a Growth Problem?

Facebook Tries Another Twitter-Like Move

Here’s Why Wall Street Loves Facebook Again

Kobe Bryant Turns a Boring Video Into a Social Media Event

What Ad Network Problem? Vungle Raises $6.5 Million for Mobile Video Ads.

Investors to Ad Tech Stocks: No Thanks

“Breaking Bad” Is Big on Twitter, Facebook — And TV, Too

Facebook’s Nonexistent Video Ads Could Be a $1 Billion Business Next Year