The size of the Internet
Although the Internet is the newest medium for information flows, it is the fastest growing new medium of all time, and becoming the information medium of first resort for its users. Note that the Web consists of the surface web (fixed web pages) and what Bright Planet calls the deep web (the database driven websites that create web pages on demand).
| Table 8.1: The size of the Internet in terabytes. | |
| Medium | 2002 Terabytes |
| Surface Web | 167 |
| Deep Web | 91,850 |
| Email (originals) | 440,606 |
| Instant messaging | 274 |
| TOTAL | 532,897 |
Source: How much information 2003
Worldwide stat on Internet usage:

Source: Nielsen/NetRatings via CyberAtlas
Compostition of surface web:

Source: How much information 2003
Spam count:

Source: BrightMail http://www.brightmail.com/spamstats.html
Source:
http://www.sims.berkeley.edu/research/projects/how-much-info-2003/internet.htm
Note:
This compilation is based on the survey data collected in 2003.These are not current data.If anyone has access to current data on the above topics,please send to me or post as a comment in my blog.
My Email : bharath_m_7@yahoo.co.in
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