THIS ARTICLE: Details how to send updates home from the field. It covers how to update your blog, send Tweets or leave voicemail from remote places; what software and technology you might need; and why you might want to do any of this. There are also studies of recent expeditions.
Expeditions in the twenty first century are rarely necessary. So how do we find a real challenge to undertake that hasn't already been done. Well perhaps it doesn't matter if it's already been done. It would still be a challenge to you.