This magazine merged with Dr. Dobb's in May 2006, with the old url (http://www.sdmagazine.com) redirecting  to Dr Dobbs.

Here are some articles of the magazine:
http://jeantessier.com/SoftwareEngineering/SoftwareDevelopmentMagazine.html

The magazine used to organise the JoltAward and JoltProductivityAward each year.

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CategoryMagazine