O/8 is occasionally discussed in the STT forum, but the main focus there is NLHE, and O/8 is usually played limit at SnGs.
The following is a good general discussion of limit SnGs (not O/8):
Limit
The O/8 chapter in SS2 has a brief but very good discussion of short-handed O/8. It is not specific to tournament play, but gives a good discussion of how you should change your starting hand requirements as the table gets shorter.
One of the keys to SnG end game play is that the fewer the number of players, the less likely that there will be a qualifying low hand. Even the dreaded 8's and 9's can be playable, and big pairs are a monster. Draws to straights and flushes go down in value here. There are lots more scoops at the end.