Learning the other Pokers!

Been doing a bit of research since I accidentaly joined a HORSE game when I thought it was NL HE. Was totally lost most of the game.

So heres the question - Why isnt there more on the other forms of poker on the forum? (or am I blind as a bat?) I have seen mention of omaha before but no actual strategy or even how to play.

I would like to learn these other forms as it open other avenues so any advice / tips on where to find info on these would be appreciated

Thanks in advance

RAT

PS and what does the full HORSE stand for ? Holdem Omaha ???? ???? ????

HORSE is

Holdem
Omaha eight or better
Razz
Stud hi
stud Eight or better