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Average improvement in key performance indicators
(traffic counts, user productivity, use of specific
features) when 10 percent of a Web site redesign
project is invested in usability testing
 $2.52
The value in ticket sales for an
individual’s
Facebook posting about an event
 $1,700,000
The return on investment to the individual
from a four-year degree at MIT
 10%
Percentage of word-of-mouth referrals who
become profitable customers to a business
 43 cents
The value in ticket sales for
a single Tweet about an event
 143%
Increase in value of traffic when moving from the top of the
second page to the bottom of the first page in Google search results
 $4.38
Return in grant income for
every $1 invested in the library
 WorldCat statistics | Contents
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