I built a prototype too: thingsy.co
It finds all the pictures on Instagram with the hashtag #forsale, post them on Craigslist, and contact the seller through Instagram when a buyer emails the Craigslist contact info.
Craigslist killed it.
It finds all the pictures on Instagram with the hashtag #forsale, post them on Craigslist, and contact the seller through Instagram when a buyer emails the Craigslist contact info.
Craigslist killed it.
a few others
http://new.soldsie.com/instagram-selling/
https://paytagz.com (Member of http://boost.vc)