Amazon to collect Minnesota sales tax starting Oct. 1 – StarTribune
BNSF official: Keystone pipeline won't stop oil by rail boom – McClatchy
Are the Federal Reserve's naysayers on the wrong side of history? – Washington Post
Natural gas alone isn't magic weapon against climate change – Seattle Times
Forget the masked men in the east, Ukraine's economy is imploding – Sober Look
Apartments, apartments, apartments in downtown Minneapolis – StarTribune
City panel endorses 100-acre solar farm just outside Sioux Falls – Argus Leader
Fresh graves point to undercount of Ebola toll – NY Times
Rural Iowa is graying, shrinking (part 2 of 5) – Des Moines Register
White supremacists gone in Leith, town can't rest easy – Bismarck Tribune
Big Pharma: Germany's Merck to buy St. Louis-based Sigma-Aldrich – Bloomberg
Humanity's most famous mixtape is now 11 billion miles away – Atlantic