Here I've brought together some of the best free online poker strategy videos aimed at SNG/sit n go poker players. These are all hosted on YouTube, so you click for a larger version of the video.
1) $6 turbo (9 player) on Full Tilt by epokervideo.com - two parter(live)
2) $10 9player SNG on Vegas Poker by KFE (audio is quiet) - five-parter (live)
3) Shortstack play - $10 9 player sit n go on Full Tilt by MrSNGPoker (live)
4) Sit N Go Strategy 1 by pokerguruin (Replayer)