Date Tweets per day

Mar 1, 2006 0

Mar 1, 2007 5,000

Mar 1, 2008 300,000

Jan 1, 2009 2,500,000

Dec 1, 2009 35,000,000

Feb 1, 2010 50,000,000

** Reference: Schrodeder, Stan, “Twitter’s Amazing Growth Suddenly Stops” Mashable.com, June 2010

0

12500000

25000000

37500000

50000000

Mar 1, 2006 Jan 1, 2009

Number of Tweets per Day

S-Curve of Twitter Chito Peppler, ISTM 224, Feb 2010

** An increasing number of registered users, tweets and applications developed over time

** Figure of Merit: Number of Tweets per application developed.

** Applications enabled by this technology: Microblogging, social networking and news sharing. Over 1,000

Twitter applications have been created, 50 million daily tweets.

** Starting point of the curve: March 2006 when Twitter was formed by Evan Williams when he worked for a

podcasting company he co-founded, Odeo in Silicon Valley.

** Ultimate Limiting Phenomenon: Based on an Oct 2009 study by www.royal.pingdom.com, the highest

number of tweets per hour measured was 1,841,289. Twitter is projected to process 10 billion tweets/year.

** Twitter can only handle so many users at one time. During the 2010 Super Bowl, Twitter was brought down

20 times. In Dec, 2009, Twitter was hacked and defaced by the “Iranian Cyber Army” showing its vulnerability

to hacking and denial of service. ** According to RJ Metrics, in Dec 2009, only 17% of Twitter accounts

posted tweets, down from 70% in early 2007

1,450 % increase in 2009

10-15 million active

Tweeters

600 Tweets per sec.March 2010

Twitter founded in March 2006