Last year, I started buying and selling internet domains. While I’ve yet to make any significant sales, I’ve spent time hand-registering unregistered domains directly and purchasing them at auction.I haven’t spent a ton of money on domains, but I’m spending enough every month to want to earn the most rewards possible on my expenses. Most of my domain purchases — through Spaceship, Name.com, and GoDaddy — are coded as internet hosting or software on my card statement.After some research, I found that the Ame ...