Mozilla Open Directory Category Size Over Time - Raw Data
"The Internet Is Becoming a Mall"? An Empirical Investigation Through Web Directories

 

Category sizes over time

1999 2000 2001 2002
Arts
95206
187521
216892
273582
Business
54508
130728
163380
223329
Computers
38269
79844
92228
123215
Games
31809
31809
37327
49678
Health
36143
37354
45964
59754
Home
11380
31238
26819
37039
Kids and Teens
-
-
8006
18446
News
45582
47056
47775
47534
Recreation
56828
89986
94930
108295
Reference
50928
76208
75334
66559
Regional
211854
488797
589592
784904
Science
32197
59395
66330
85910
Shopping
6001
73197
89726
109229
Society
140975
141542
162940
214983
Sports
28953
58441
66518
89513
World
270590
276135
339325
662771

Data anomaly: The Kids and Teens category was added during 2000.

 

Category sizes over time, relative to 1999 category sizes

1999 2000 2001 2002
Arts
1.000
1.970
2.278
2.874
Business
1.000
2.398
2.997
4.097
Computers
1.000
2.086
2.410
3.220
Games
1.000
1.000
1.173
1.562
Health
1.000
1.034
1.272
1.653
Home
1.000
2.745
2.357
3.255
Kids and Teens
-
-
-
-
News
1.000
1.032
1.048
1.043
Recreation
1.000
1.583
1.670
1.906
Reference
1.000
1.496
1.479
1.307
Regional
1.000
2.307
2.783
3.705
Science
1.000
1.845
2.060
2.668
Shopping
1.000
12.197
14.952
18.202
Society
1.000
1.004
1.156
1.525
Sports
1.000
2.018
2.297
3.092
World
1.000
1.020
1.254
2.449

 

Category sizes over time, year-over-year (relative to prior year)

2000 2001 2002
Arts
1.970
1.157
1.261
Business
2.398
1.250
1.367
Computers
2.086
1.155
1.336
Games
1.000
1.173
1.331
Health
1.034
1.230
1.300
Home
2.745
0.859
1.381
Kids and Teens
-
-
-
News
1.032
1.015
0.995
Recreation
1.583
1.055
1.141
Reference
1.496
0.989
0.884
Regional
2.307
1.206
1.331
Science
1.845
1.117
1.295
Shopping
12.197
1.226
1.217
Society
1.004
1.151
1.319
Sports
2.018
1.138
1.346
World
1.020
1.229
1.953