I've been thinking about joining Swap-bot and Postcrossing for a while now because a lot of people mention these websites and I'm curious! (The question I should ask myself though is "Do I really need another addiction?!")
The Missive Maven is currently hosting a Cat Postcard Swap on Swap-bot and it sounds like fun. I have quite a few cat postcards that would be perfect for the occasion!
If any of you are members of these sites, please let me know what your opinions are!