Five percent of indexed CPAN packages come from just two distributions

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And both have to do with advertising.

Counting all packages indexed in 02packages.details.txt (possibly across multiple tarball versions), two distributions account for 5% of CPAN packages:

  • Microsoft-AdCenter

Here are the top 10 with the number of index lines each:

Microsoft-AdCenter: 1628
Shipment: 1197
eBay-API: 1160
BioPerl: 851
Graphics-VTK: 707
DateTime-Locale: 469
Net-Amazon: 455
UMMF: 451
Locales: 426

Together they account for 8.6% of the 135,000 or so currently indexed packages.

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