A friend has forwarded me a link to the Russian Chronicles, a travel blog by Lisa Dickey and photographer David Hillegas (the archive is here). They are moving from Vladivostok to St. Petersburg, re-visiting places and people that Lisa and another photographer, Gary Matoso, encountered on their trip across Russia ten years ago, in 1995. That journey has been documented here.
A truly exciting project. I've read only one entry so far, and already I wish I could do something similar as well. (When I think more about it, though, I'm beginning to feel claustrophobic: if all goes well - inshaallah - there's no way I'll be able to accomplish anything like this anytime soon...)