How to sign up for an account of Pangeo?

Hi everyone,
I am a new and want to learn how to use pangeo. I have filled out google form for several days, but I still receive the reply. How should I do for the next?

Hi @huanglongyu - the public Pangeo hub is no longer operational. However there are many other Pangeo-style Jupyter hubs out there, mostly maintained by 2i2c.

Where did you find instructions to sign up? I thought we had taken that website down. Could you help point me in the right direction?