If the game in the domain of complete keyword phrases (3 words), but only 44 reverse, they have no real high PR, but our domain name, and then have a word three words of key words group, and in the early/Google ice, but not yahoo. Reverse, we already is yahoo directory, BOTW, HotVsNot, linkwheels, submit articles, etc. # 2, # 1 point, but yahoo still has not.
Yahoo directories can be helpful. but in optimizing yahoo, i always do social bookmarking for every links i created. this will help in yahoo search engine.