I was asking for the same thing few days ago.
There are no invites for theplace, the only way to get an account is to demonstrate you are worthy for the community. Go to irc channel and get interviewed.
Quick tip: the interviewer knows his shit, so just be honest. If your application is denied, you are not ready yet (it's more about how much you know and can talk about subjects discussed there, rather than how many things you can upload)