No question about this one. It's one of the most valuable things to come along since the 'Net got started.
Even given the importance of respecting the intellectual property of those who create videos, the whole idea of "civilians" being able to broadcast is excellent.
Also no question as to my choice for what to link here. I went to YouTube, searched Acrentropy, my favorite blog by a JPL librarian (guess who), and searched the three video clips created by "Alonzo Mosley (FBI)."
The first one, "100 Movies, 100 Quotes, 100 Numbers," came out last year and got international acclaim, deservedly so:
The second one, "Getting drunk and losing all your money ... at the Movies," is less well known:
The third, "100 Movies, 100 Quotes, 100 Numbers: The Centennial Edition," is new:
Great work, Alonzo!