Earlier this year, I stumbled across Library Thing and almost immediately decided that I wanted to join—which is a rare thing for me concerning online services. So I did what any normal person would do and I bought a barcode scanner and wrote some python to build my catalog. The python script is just a loop that shows a prompt and waits for an ISBN, t to input a tag, q to quit. Meanwhile it's generating a csv file that can be uploaded to LibraryThing. The fruits of this labor were/are my (and Blazey's) Library Thing Catalog