
Web wide crawl with initial seedlist and crawler configuration from March 2011. This uses the new HQ software for distributed crawling by Kenji Nagahashi.
What�s in the data set:
Crawl start date: 09 March, 2011
Crawl end date: 23 December, 2011
Number of captures: 2,713,676,341
Number of unique URLs: 2,273,840,159
Number of hosts: 29,032,069
The seed list for this crawl was a list of Alexa�s top 1 million web sites, retrieved close to the crawl start date. We used Heritrix (3.1.1-SNAPSHOT) crawler software and respected robots.txt directives. The scope of the crawl was not limited except for a few manually excluded sites.
However this was a somewhat experimental crawl for us, as we were using newly minted software to feed URLs to the crawlers, and we know there were some operational issues with it. For example, in many cases we may not have crawled all of the embedded and linked objects in a page since the URLs for these resources were added into queues that quickly grew bigger than the intended size of the crawl (and therefore we never got to them). We also included repeated crawls of some Argentinian government sites, so looking at results by country will be somewhat skewed.
We have made many changes to how we do these wide crawls since this particular example, but we wanted to make the data available �warts and all� for people to experiment with. We have also done some further analysis of the content.
If you would like access to this set of crawl data, please contact us at info at archive dot org and let us know who you are and what you�re hoping to do with it. We may not be able to say �yes� to all requests, since we�re just figuring out whether this is a good idea, but everyone will be considered.

Featuring music from the Badger State and the surrounding area.To showcase the "lesser known music",Independent music,and bands with ties to Wisconsin. Music from the past and recent past.

4 comments:
These are GREAT! Thank you... Got any other radio station surveys?
Thanks always love that stuff
Philo
I think that you have not consulted if you can put a link on another blog here and give you the opportunity of Ortho blog owner to decide whether or not ..
George
George and anonymous:
Who are you?
I don't have to consult anyone when the things I put into my blog are from me,and not from any other site. The charts on here I collected. So I don't have to ask any permission to use my own things. If you don't like it,don't come here. A lot of people post things on their blogs that are their own things,and I'm not taking a scan of anyone else's charts from any other site.
These are in my collection.I have charts from a ton of radio stations,not all from Wisconsin,but from Chicago,New York and L.A.,all over. I collected them,when I was a kid,and bought some via online auctions. Who's Ortho Blog owners anyways?
And what gives you the right to think that my stuff is from another site? Man,that's pretty ballsy of you to think that.
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