It's the medium of the internet age, but still one we don't take enough advantage of: blogging.
A funny argument to make on a blog, sure; but here I'm thinking specifically of a weblog as a kind of informational travelogue for students when they study abroad. Not only can you share photos and written descriptions of your experiences with family, friends and colleagues; a blog helps us all piece together and understand the story of what it is you are doing. Case in point: this blog by UGA students participating in a study abroad program in Tanzania.
Another, written by a recent alumna who is serving as a Peace Corps Volunteer in Morocco.
Check them out. And if you are some place fun and exciting, start blogging. Oh, and send me a link.