At this time of year, I often get contacted by potential job applicants. It is often quite difficult to gauge how interested I might be in their application, just by looking at their vita or trying to read one of their papers (and who has time to do more than that.) Arranging to meet with them is usually a big hassle for one or the other party, since they are seldom local.
What would help me would be if I saw them give a talk. For me a talk is much more informative than a paper and with much less effort. But how can that happen without the bother of traveling?
Simple: job applicants could simply videotape themselves giving their job talk, and post it on their web page.
Then I could simply download and watch their talk, and in 50 minutes I would have a good idea of their research, of how interested I am in it, and of how good they are at communicating. That would be great for me!