http://goo.gl/En0gbp
I tested several scenarios including the more common filing status, exemptions, income, adjustments, credits, other taxes, payments, etc. The recommended programs covered far more situations than those listed at IRS Free File. All are feature limited versions of commercial programs so expect to be nagged.
State income tax returns may or may not be free depending on several factors such as your state, income, etc. In that situation check the IRS Free File for possible alternatives. Also a taxpayer may be able to complete their state return for free using the information from the federal return. Finally see the IRS VITA and TCE link immediately below.
The IRS Free File site also lists many options for filing Federal Income tax returns. Beware, some of the listed services don't nag and therefore don't necessarily warn that the taxpayer no longer qualifies for a free return.