You may read the mails sent to the Similar reflector here
You may subscribe to the Similar mailing list through the Sympa interface :
Notice that you will have to login on the Sympa system to be able to subscribe:
Click the Login button : if you don't have yet a password, Sympa will send you one.
Then Click on the 'Subscribe' blue button and follow the on-screen instructions.
And you are on the Similar mailing list !
Keep your access password in a safe place; it will allow you to modify your subscription and to unsubscribe.