While researching references in an article on Social Security for my government documents class, I discovered that AARP has a blog on Social Security: AARP Social Security Blog.

I also came across their 48-page PDF file of acronyms of government agencies and laws that are related to aging issues, Acronyms in Aging: Organizations, Agencies, Programs, and Laws, which is very useful.

[Thanks to Law Librarian Blog for the AARP blog tip.]