There was no notification, I just happened to be looking in my sync settings and noticed that my Google contacts have a sync error. Quote: "Sync is currently experiencing problems. It will be back shortly."
Every thing but the contacts are syncing, and my last successful contact sync was on 3/3/12.
If no one else has this problem, I probably just need to remove my account and set it up again.
I found another solution in my case: i went into contacts on my S3 phone, and chose "groups", there i found 38 "unassigned" contacts. I proceeded to assign them all to some group, if not at least "my contacts". then requested a sync, and voil !