Government Information (SSDI) « SSDI

Apply for Social Security Disability Benefits (U.S. Social Security Administration)
Steps to apply for disability benefits, how to appeal if you are denied, information if you already receive disability benefits.
Benefits for People With Disabilities (Social Security Online)
The Social Security and Supplemental Security Income disability programs are the largest of several Federal programs that provide assistance to people with disabilities. While these two programs are different in many ways, both are administered by the Social Security Administration and only individuals who have a disability and meet medical criteria may qualify for benefits under either program. Social Security Disability Insurance pays benefits to you and certain members of your family if you are "insured," meaning that you worked long enough and paid Social Security taxes.
Disability Planner (Social Security Online)
While we spend a great deal of time working to succeed in our jobs and careers, few of us think about ensuring that we have a safety net to fall back on should we become disabled. This is an area where Social Security can provide valuable help to you. This disability planner will explain the benefits available, how you can qualify, and who can receive benefits on your earnings record. It will also explain how to apply for the benefits and what happens when your application is approved.
Research, Statistics & Policy Analysis

FAQs: SSDI (PEKD & Associates)
Social Security Disability SSI Benefits (Disability Secrets.com)
This site was put together by Tim Moore, a former disability-medicaid caseworker and former disability examiner for the Social Security Administration. It provides a detailed overview of how the federal disability system works (social security disability and SSI) and also provides answers to many questions that applicants typically have, but often have trouble finding answers to.