Zuckerberg acknowledges 'mistakes' as Facebook turns 14

San Francisco

MARK Zuckerberg offered fresh self-criticism on Monday, acknowledging making numerous mistakes in building the world's biggest social network as Facebook marked its 14th birthday.

"Over the years, I've made almost every mistake you can imagine," the Facebook co-founder said on his personal page. "I've made dozens of technical errors and bad deals. I've trusted the wrong people and I've put talented people in the wrong roles. I've missed important trends and I've been slow to others."