The Snailr Project
No one told me about The Snailr Project.

While taking a train ride across the western United States, Anna intends to keep her friends updated: using postcards.
I’ll use the postcards to capture a single vignette, overheard snatch of conversation, observation or thing that I’ve noted along the way. And then I’ll post them off to people as I go along. I’ll keep a photograph of the card, and a typed transcript of whatever I wrote on it.
A little geocoded anecdote of your friend’s travel. Personalized and delivered in the mail, a gem among the credit card offers and take out menus.
A more detailed explanation here.