By Jamilah King
Colorlines.com

Marcus Books, the nation’s oldest black-owned bookstore, is taking on Amazon.com’s new price-checker app. Now, the indy bookstore’s supporters have launched an online tool that reminds prospective shoppers that it’s important to support local businesses in person this holiday season.

Jasmine Johnson, whose family has run San Francisco’s Marcus Books since 1960, started a Change.org petition last week to call out Amazon’s shadiness. The app in question allows customers with smartphones to walk into local bookstores and compare prices with the online retailer. It’s considered an especially low-blow by independent bookstores, many of whom are already struggling to keep their stores afloat.

Click here to read the rest of this story.