Internet Growth Data
Source: Hobbes' Internet Timeline
URL: http://info.isoc.org/guest/zakon/Internet/History/HIT.html
Date	Hosts	Date	Hosts	Networks	Domains
Dec-69	4	Jul-89	130,000	650	3,900
Jun-70	9	Oct-89	159,000	837
Oct-70	11	Oct-90	313,000	2,063	9,300
Dec-70	13	Jan-91	376,000	2,338
Apr-71	23	Jul-91	535,000	3,086	16,000
Oct-72	31	Oct-91	617,000	3,556	18,000
Jan-73	35	Jan-92	727,000	4,526
Jun-74	62	Apr-92	890,000	5,291	20,000
Mar-77	111	Jul-92	992,000	6,569	16,300
Dec-79	188	Oct-92	1,136,000	7,505	18,100
Aug-81	213	Jan-93	1,313,000	8,258	21,000
May-82	235	Apr-93	1,486,000	9,722	22,000
Aug-83	562	Jul-93	1,776,000	13,767	26,000
Oct-84	1,024	Oct-93	2,056,000	16,533	28,000
Oct-85	1,961	Jan-94	2,217,000	20,539	30,000
Feb-86	2,308	Jul-94	3,212,000	25,210	46,000
Nov-86	5,089	Oct-94	3,864,000	37,022	56,000
Dec-87	28,174	Jan-95	4,852,000	39,410	71,000
Jul-88	33,000	Jul-95	6,642,000	61,538	120,000
Oct-88	56,000	Jan-96	9,472,000	93,671	240,000
Jan-89	80,000	Jul-96	12,881,000	134,365	488,000
		Jan-97	16,146,000		828,000
		Jul-97	19,540,000		1,301,000
Notes:	Hosts = a computer system with registered IP address;
	Domain = registered domain name (with name server record)
A more accurate survey mechanism was produced in 1999, new and corrected numbers are shown below:
Date	Hosts	Date	Hosts	Date	Hosts
Jan-95	5,846,000	Jan-97	21,819,000	Jan-99	43,230,000
Jul-95	8,200,000	Jul-97	26,053,000	Jul-99	56,218,000
Jan-96	14,352,000	Jan-98	29,670,000	Jan-00	72,398,092
Jul-96	16,729,000	Jul-98	36,739,000
Note: the original source for the data above is: Network Wizards Internet Domain Survey
URL: ftp://ftp.nw.com/pub/zone/WWW-9807/top.html
This statistics is also reproduced at the following locations:
1. Internet Statistics: Growth and Usage of the Web and the Internet
URL: http://www.mit.edu/people/mkgray/net/
2. Internet Software Consortsium: Internet Domain Survey
URL: http://www.isc.org/ds/
Source: The NSFNET Backbone Project, 1987-1995
URL: ftp://nic.merit.edu/statistics/nsfnet/index.html
Date	Networks	Date	Networks	Date	Networks
Jul-88	217	Nov-90	2125	Mar-93	10498
Aug-88	241	Dec-90	2190	Apr-93	11252
Sep-88	292	Jan-91	2338	May-93	12349
Oct-88	305	Feb-91	2417	Jun-93	13170
Nov-88	334	Mar-91	2501	Jul-93	14121
Dec-88	346	Apr-91	2622	Aug-93	15160
Jan-89	384	May-91	2763	Sep-93	16696
Feb-89	410	Jun-91	2982	Oct-93	17979
Mar-89	467	Jul-91	3086	Nov-93	19664
Apr-89	516	Aug-91	3258	Dec-93	21430
May-89	564	Sep-91	3389	Jan-94	23494
Jun-89	603	Oct-91	3556	Feb-94	25706
Jul-89	650	Nov-91	3751	Mar-94	28578
Aug-89	745	Dec-91	4305	Apr-94	30626
Sep-89	809	Jan-92	4526	May-94	32370
Oct-89	837	Feb-92	4740	Jun-94	34051
Nov-89	897	Mar-92	4976	Jul-94	36153
Dec-89	927	Apr-92	5291	Aug-94	38307
Jan-90	1233	May-92	5515	Sep-94	39977
Feb-90	1290	Jun-92	5739	Oct-94	41520
Mar-90	1356	Jul-92	6031	Nov-94	42883
Apr-90	1525	Aug-92	6385	Dec-94	44689
May-90	1580	Sep-92	6640	Jan-95	46318
Jun-90	1639	Oct-92	7354	Feb-95	48514
Jul-90	1727	Nov-92	7854	Mar-95	50344
Aug-90	1894	Dec-92	8561	Apr-95	50766
Sep-90	1988	Jan-93	9117
Oct-90	2063	Feb-93	9604
Date	Hosts			Date	Domains
Aug-81	213			Jul-88	900
Aug-83	562			Jul-89	3,900
Oct-85	1,961			Oct-90	9,300
Dec-87	28,174			Jul-91	16,000
Oct-89	159,000			Oct-92	18,100
Oct-90	313,000			Oct-93	28,000
Oct-91	617,000			Oct-94	56,000
Oct-92	1,136,000			Jul-95	120,000
Oct-93	2,056,000			Jul-96	488,000
Oct-94	3,864,000			Jul-97	1,301,000
Jul-95	6,642,000
Jul-96	12,881,000
Jul-97	19,540,000
Source: NetSizer
URL: http://www.netsizer.com/
Estimate of the number of web hosts (As of Jul 21, 2000): 86.437 millions
Source: Domain Stats
URL: http://www.domainstats.com/
Total domains registered worldwide (As of Jul 21, 2000): 17,804,717
Source: Center for Next Generation Internet
URL: http://www.ngi.org/trends.htm
Annual hosts growth rate: 63%
Predictions:		100 million hosts by the end of 2000
		1 billion hosts by 2005
Expansion:		69 new hosts per minute
		23 new domains per minute
Contains detailed statistics by country
WWW Growth Data
Source: Hobbes' Internet Timeline
URL: http://info.isoc.org/guest/zakon/Internet/History/HIT.html
Date	Sites	Date	Sites	Date	Sites
Jun-93	130	May-97	1,044,163	Dec-98	3,689,227
Sep-93	204	Jun-97	1,117,255	Jan-99	4,062,280
Oct-93	228	Jul-97	1,203,096	Feb-99	4,301,512
Dec-93	623	Aug-97	1,269,800	Mar-99	4,389,131
Jun-94	2,738	Sep-97	1,364,714	Apr-99	5,040,663
Dec-94	10,022	Oct-97	1,466,906	May-99	5,414,325
Jun-95	23,500	Nov-97	1,553,998	Jun-99	6,177,453
Jan-96	100,000	Dec-97	1,681,868	Jul-99	6,598,697
Jun-96	252,000	Jan-98	1,834,710	Aug-99	7,078,194
Jul-96	299,403	Feb-98	1,920,933	Sep-99	7,370,929
Aug-96	342,081	Mar-98	2,084,473	Oct-99	8,115,828
Sep-96	397,281	Apr-98	2,215,195	Nov-99	8,844,573
Oct-96	462,047	May-98	2,308,502	Dec-99	9,560,866
Nov-96	525,906	Jun-98	2,410,067	Jan-00	9,950,491
Dec-96	603,367	Jul-98	2,594,622	Feb-00	11,161,811
Jan-97	646,162	Aug-98	2,807,588	Mar-00	13,106,190
Feb-97	739,688	Sep-98	3,156,324	Apr-00	14,322,950
Mar-97	883,149	Oct-98	3,358,969	May-00	15,049,382
Apr-97	1,002,512	Nov-98	3,518,158	Jun-00	17,119,262
Source: article "Accessibility of Information on the Web"
URL: n/a, only a printed copy is available
Note: all numbers below refer to publicly indexable web pages; publicly indexable web pages exclude pages that are not normally considered for indexing by web search engines, such as pages with authorization requirements(including firewalls), pages excluded from indexing using the robots exclusion standard, dynamic pages, etc;
	December, 1997:		at least 320 million pages;
	February, 1999:		2.8 million servers on the publicly indexable web;
			289 average pages per server;
			800 million publicly indexable web pages;
			18.7 kilobytes is the mean size of a page;
			3.9 kbytes is the median size of a page;
	February, 1999, continued:		7.3 - kbytes average size of the textual content [after removing HTML tags, comments, and extra white space];
			0.98 kbytes - median size of the textual content;
			15 terabytes of pages is the amount of data on the publicly indexable web;
			6 terabytes is the amount of text data;
			62.8 images per web server;
			15.2 kbytes - average image size;
			5.5 kbytes - median image size;
			180 million images on the publicly indexable web;
			3 terabytes - total amount of image data;
Note: the distribution of pages on web servers is extremely skewed, following a universal power law; many sites have few pages, and a few sites have vast numbers of pages, which limits the accuracy of the estimates above; the true value could be higher because of very rare sites that have millions of pages (for example, GeoCities reportedly has 34 million pages), or because some sites could not be crawled completely because of errors;
Source: "Size of the Web: A Dynamic Essay for a Dynamic Medium"
URL: http://censorware.org/web_size/
As of 7/5/2000, the Web has roughly:				2,170,000,000 pages;
				40,800,000,000,000 bytes of text;
				489,000,000 images;
				8,160,000,000,000 bytes of image data.
In the last 24 hours, the Web has added:				4,420,000 new pages;
				82,800,000,000 new bytes of text;