
This story on a free wi-fi network along a 22km stretch of the Thames River in London is an example of versioning at work. The service is free at download speeds of up to 256kbps to users who agree to watch a 15-30sec advertisement every 15mins or so (that’s versioning by annoyance), while anyone who wants to pay for the service will not only avoid the commitment to watch an advertisement, they’ll also get faster download speeds.
By the way, further information on versioning can be found in “Information Rules: A Strategic Guide to the Network Economy”, by Carl Shapiro and Hal Varian can be found here.
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