Originally Posted by Worldwalker
I have something of a personal interest in this because one of these days, when my leatherworking tools and I are at least in the same state, and maybe even in the same house (don't anyone hold your breath; fall at the very earliest), I'll probably be selling book covers myself. Just an Etsy link in my .sig, though.
A small discreet advert, as Harry mentioned, is currently permissible in one's sig. You are also a regular contributor to MobileRead, adding opinions and creating threads that engage the community in topics of discourse.