Alexis Madrigal, senior editor at The Atlantic, has been writing about "Rust Belt" startups as part of an ongoing series called "Startup Nation."

In a feature titled, "Helping Apartment Complexes Help You," he writes about Renter's Boom, a Cleveland startup that works with rental-management companies "to turn their social media pages into leasing hubs."

"They set up Facebook pages for these companies and help them build apps so that people can check out apartments, make appointments, and send referrals within the social network. They also work to help the companies integrate Google's various products that renters may use," Madrigal writes.

Read the rest here.