Should my worldlearningtree.com target ESL students?

I originally built my worldlearningtree website with the goal of creating a complete online educational and game based website. It would (current stage) start of with the best links to games that provide the greatest educational value using what I consider web 2.0 technologies. It will evolve into on online virtual world in which the missions will be educational and the learning is transparent. For now though, I have been reconsidering who the best audience or target market is. Should I target foreign adults that can play these english games to more quickly learn English?
Does anybody have any other ideas on where I might go with my website or the best way to pursue getting assistance in expanding on my vision? Thanks much!