Attendees mingle during a break at the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. Chirp, the...
Twitter COO Dick Costolo announces the new Twitter Promoted Tweets during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in...
Twitter COO Dick Costolo speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. Chirp, the...
Twitter COO Dick Costolo speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. Chirp, the...
Twitter COO Dick Costolo speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. Chirp, the...
Twitter COO Dick Costolo speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. Chirp, the...
Twitter COO Dick Costolo speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. Chirp, the...
Musician Will.i.am of the Black Eyed Peas speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco,...
Musician Will.i.am of the Black Eyed Peas speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco,...
Musician Will.i.am of the Black Eyed Peas speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco,...
Musician Will.i.am of the Black Eyed Peas speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco,...
Musician Will.i.am of the Black Eyed Peas speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco,...
Twitter Director of Platform Ryan Sarver speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco,...
Twitter Director of Platform Ryan Sarver speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco,...
Twitter CEO Evan Williams speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Twitter co-founder Biz Stone speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Twitter co-founder Biz Stone speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Twitter CEO Evan Williams speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Twitter co-founder Biz Stone speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Twitter CEO Evan Williams speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Attendees use laptops as CEO Evan Williams speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco,...
Twitter co-founder Biz Stone speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Twitter co-founder Biz Stone looks at his cell phone after speaking at the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San...
Twitter CEO Evan Williams speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Twitter CEO Evan Williams speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Twitter co-founder Biz Stone speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Twitter co-founder Biz Stone speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Twitter CEO Evan Williams speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...
Twitter co-founder Biz Stone speaks during the first annual Chirp, Twitter Developer's Conference April 14, 2010 in San Francisco, California. The...