Everyone in the channels now have access to invite. I would also suggest doing general shouts in the cities to get invites to the channels as well. Much of the rp community is usually around Limsa Lominsa and you can find me online in the late hours and all during the day Fridays and Saturdays.
A good FFXIV lore site: http://ffxiv.gamerescape.com/wiki/Eorzea
