It is now very easy to join the club. You will see a toolbar at the top of the page which allows you to do so with the click of a button.
If you would like to submit art or fanfic to the community, simply use the easy new group feature to suggest a submission and/or favorite. All submissions will be reviewed and added upon approval and linked directly to the work itself. To submit, simply visit the group gallery and in the top right corner you will see a Submit Art To This Folder option. Make sure your art is already uploaded in your own gallery and choose the option to submit an existing piece of work.
Please keep all submissions at a rating of no higher than R (Violence is alright, as long as its not a gorefest, and please, nothing pornographic).