I do random invites, but I personally think I am a member [Officer] of a wonderful guild..
We help members in and out of our guild.
We have implemented a "Hello, Guild. Anyone need help?" Policy amongst the officers and GuildMaster so that everyone in the guild will know that they can ask for help and will get it.
Our guild is more than people who have a guildname under their name, we are more than someone you see in a list, we are more than friends, we are a family..
We've even started doing raids and guild sailing [non-svs so far]..
We are trying to involve everyone so that everyone advances and enjoys the game.