Twitter, Pinterest

Wikipedia
Quirky beginnings: name Twitter: 'a short burst of inconsequential information,' and 'chirps from birds'
Information network, versus Social network
mentions, hashtag, trending topics (innovations adopted by Facebook)
Third party applications (Tweetdeck, Vine, #music)
design usability: simplicity (combo of blogs / rss)
Value: platform, users, marketers
Est: 3/06
Tipping Point: 2007 South by Southwest (20k to 60k users)
3/10 70k registered apps
Open API for growth, closing API once tech matured
3/12, 6th birthday: 140 million users, 340 m tweets a day
12/12, 200 million active users. Top 10 most visited web-site
$8.4 billion valuation, 12/11; 10/13 IPO value approx $15bn
Revenue of $422m, 1st 9 months of 2013, 70% ad revenue from mobile
Usage spikes, prominent events
Redesigns for Business Model, and logo, "What are you doing" versus "What's happening"
Verified accounts
Personal Branding, but how do businesses use Twitter?
promoted: tweets, accounts, trends
Marketers platform: PR, advertising and data
Social TV etc.
Oreo during Superbowl
Two broad goals, grow channel, engage channel
Twitter business model, sustainable?
Popular with teens
Growth issues: attracting new users, design change (4/14)
Pressure for revenue growth post IPO