Content strategy identifies how content will help achieve your business objectives,” Halvorson explains. “It informs how organisations create, deliver and govern or take care of their content, online and beyond. It helps people move from thinking about content ‘launch’ to content ‘life cycle’, allowing them to create a plan to manage that content over time.
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From the .net magazine interview with Kristina Halvorson - http://www.netmagazine.com/interviews/in-depth/kristina-halvorson-content-strategy - a recommended read from @dianarailton and @fit_to_print on Twitter. I thought this bit was a great summary that, if I can memorize it, can be flung at people in elevators! :)
In fact, this bit is the most important: Content strategy identifies how content will help achieve your business objectives.
A great article that technical communicators should read, despite the shocking revelation at the end of the article that Kristina went to St. Olaf College. :) (Inside joke. I went to Carleton College. Both colleges are in Northfield, Minnesota, where they have been rivals since the day they started. Fisticuffs were involved in the old days, but now the rivalry is all friendly. Or so they say!)