UC Berkeley's School of Information Management & Systems has released a study that will probably be widely discussed in the months ahead: How Much Information? is an attempt to quantify the amount of new data produced and stored by humans in a given year. The latest edition gathers statistics for 2002, measuring and estimating the amounts transmitted by telephone, broadcasting and the Internet, and stored on paper, film, and magnetic and optical media. A similar study was performed in 2000 using figures from 1999. Click here for the project's homepage. There you will find links to the Executive Summary, comments on methodology and a pdf of the entire report. Some highlights, emphasizing the Internet:
- The amount of new stored information grew about 30% per year between 1999 and 2002
- Information flows through electronic channels (telephone, broadcasting and the Internet) were 3.5 times the volume recorded onto storage media.
- Phonecalls represent 98% of all new information transmitted electronically.
- Almost 533,000 terabytes of data flowed through the Internet last year. (A terabyte is about as much information as is printed on the paper made from 50,000 trees.)
- About 440,000 terabytes of that was email, sent as 31 billion messages.
- Almost 92,000 terabytes of web information was generated on demand from databases last year.
- Instant Messaging accounted for 274 terabytes of new information.
- The World Wide Web contains about 170 terabytes of information in static webpages. Apparently this figure represents just the page content, not the total amount transmitted in page-views. The latter would be the appropriate measure for comparison to the other categories of transmitted data, yet it is not estimated. Nevertheless, the static webpage content is quite a bit less than the amount of data sent via Instant Messaging, although it is 17 times as great as the Library of Congress' print collections.
- No overall estimate of the volume of P2P filesharing was provided, but KaZaA, the most popular service, says that its users exchanged almost 5,000 terabytes in over 600 million files.
Note that the Internet figures do not add up: P2P filesharing is omitted from the total volume of transmitted data. That probably represents less than 5% of the total, but still it should be taken into account.
From our point of view, the main value of this study is the overwhelming evidence it provides that the Internet is not primarily a "mass" medium like broadcasting. Therefore, it is wrong to regulate it that way, as countries from Belarus to China are inclined to do. The Internet is used mostly for private point-to-point and person-to-person communication, like telephone and postal networks. So if a regulatory model is needed, the latter two are the most appropriate, and the protection of online privacy should be of greater concern than content controls and censorship.
[Thanks to Techdirt for the pointer.]