Retirement and Social Security
The social security administration will periodically send you a statement that tells you what your projected benefit will be. It also will include a record of your income. If you are not receiving your statements go the the provided link http://www.ssa.gov/mystatement/ to get assistance.
If you would like to guestimate what your benefit will be go to the following link. http://www.ssa.gov/planners/calculators.htm.
It is well worth your while to determine what your social security benefit amount will be as it will represent a sizable portion of your retirement dollars. The social security administration site is a very good web site.