http://it.answers.yahoo.com/ has been crawled 945 times going all the way back to June 18, 2006.

A crawl can be a duplicate of the last one. It happens about 25% of the time across 420,000,000 websites. FAQ

Jan
1
2
3
4
5
6
7
8
9

January 10, 2011

1 snapshot

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

January 25, 2011

1 snapshot

25
26
27

January 28, 2011

1 snapshot

28
29
30
31
Feb
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Mar
1
2
3
4
5
6
7
8
9
10
11
12
13

March 14, 2011

1 snapshot

14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Apr
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
May

May 1, 2011

1 snapshot

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Jun
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

June 24, 2011

1 snapshot

24
25
26
27
28
29
30
Jul

July 1, 2011

1 snapshot

1
2
3
4
5

July 6, 2011

1 snapshot

6
7
8
9
10
11
12
13
14

July 15, 2011

1 snapshot

15
16
17

July 18, 2011

1 snapshot

18
19
20

July 21, 2011

2 snapshots

21
22
23
24
25
26
27
28
29
30
31
Aug
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Sep
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Oct
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Nov
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Dec
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

Note

This calendar view maps the number of times http://it.answers.yahoo.com/ was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.