surveys

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Blog entry
By Chris Gerben on Sep 20th, 2010

At 4pm PST today my ad campaign on Facebook came to a close. I had been running 5 ads for exactly 20 days, spending no more than $30 a day, and...

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Blog entry
By Jonathan Tarr on Feb 21st, 2010

Some folks in my department at the University of Michigan worked last summer with the Detroit Residential Parcel Survey, a huge effort to document...

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