Social Security: When to sign up?
I turn 66 in February 2011. In what month should I sign up to receive maximum benefits?
Check out this Social Security page: How To Apply
for benefits. It says: You should apply for benefits no more than four months before the date you want your benefits to start.
Now, if you'd like to apply online, instead of making an appointment at a Social Security Office, here is the link for the application