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InfoQ has been https://www.infoq.com/research/ci-server[running a CI server survey] for more than a month now, and here is the current result: +
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https://www.infoq.com/research/ci-server[ +
image:https://jenkins-ci.org/sites/default/files/images/infoq.preview.png[image] +
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Jenkins has gotten more than 70% of the votes, once again proving the wide adoption among developers. If you are one of those who picked Cruise Control into the "considering" section, I'd encourage you to look around a bit more. +
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You can still https://www.infoq.com/research/ci-server[vote from their website or leave comments if you want]. +
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By the way, the design of two axes make no sense to me; for example, I'd order the adoption axis to "considering -> migrating to -> using now -> moving away from", and the circle seems to imply two axes are somehow interchangeable, when it should probably be just in a checkerboard to indicate those are independent axes.