Guilds?

[Torik]

Most newly formed guilds don't have the membership base to raid much and raiding also doesn't really start until level 46. =/

There are a lot of guilds out there that are friendly to new and low level players that also do raid (to some extent). Off the top of my head these are Kittens Who Say Meow, Auld Lang Syne, and Dawn Believers. Despite the silly name, Kittens has been around for years, has a reputation for being very friendly to new players, and has the most experience in raid content of these three guilds.