ABEBOOKS is the largest community of small booksellers. Enabling sales connectivity would be immensely helpful, but only if the USPS Media Mail capability is added first.

Add facebook’s marketplace as a selling channel connection so that rollo shipping manager can be used to ship orders

Add connection to tindie.com so that orders from tindie can be shipped using rollo shipping manager

The Mercari community is growing rapidly and NO shipping service connects to them.