[fullshark]

Karl Jobst speed running videos

[mrob]

I recommend his video on speedrunning the first level of Quake, including an overview of the importance of Quake to speedrunning as a whole, and an explanation of Quake's movement mechanics that make getting a good time so complex:

https://www.youtube.com/watch?v=43d8fICz6gM

[tiltowait]

I don't care about speedrunning at all, but even I find his videos (particularly the Doom ones) immensely enjoyable.