I'm certainly no Salman Khan of the Khan Academy, but I've been doing my little animated presentations for some time and Khan has giving me some inspiration ...
Basics of network bandwidth, latency, and jitter
The Secret to Overcoming Latency in Your Studio
Throughput Vs. Latency
TONIGHT I LOVE YOU - the latency
Reducing Sound Card Latency for All Audio Interfaces
STILL IN LOVE WITH YOU - the latency