In case you haven't seen it yet, here's the link to Sophie Blackall's Missed Connections. They are: adorable, quirky, funny, ironic, sad, and beautiful. She says,

"Messages in bottles, smoke signals, letters written in the sand; the modern equivalents are the funny, sad, beautiful, hopeful, hopeless, poetic posts on Missed Connections websites. Every day hundreds of strangers reach out to other strangers on the strength of a glance, a smile or a blue hat. Their messages have the lifespan of a butterfly. I'm trying to pin a few of them down."