i just received an email from cathay pacific asia miles which is offering free marriott silver level if you sign up (if you don't already belong to marriott rewards membership) or register (if you're already a member) on the following url.

http://www.joinmarriottrewards.com/cathay/cpm1/en/

although it appears to be targeted to cathay pacific asia miles members i believe that anyone can sign up for it.

regards,
alem