It is not exactly news, since it was announced months ago, but it is worth noting at the beginning of the new year that the substantial gainful activity (SGA) amount for 2011 will remain at $1,000 per month for non-blind individuals. Here are the SGA amounts since 1975.
The SGA determination is step 1 of Social Security's 5-step sequential evaluation. For Social Security disability or SSI, you must have (or expect to have) a 12-month period during which you do not have earnings at the SGA level.
If you are an employee earning more than $1,000 per month, you are probably not eligible for Social Security disability benefits. See 20 C.F.R. 404.1574. I say probably not, because other factors are considered, including IRWEs and UWAs.
If you are self-employed, the test for SGA is a more complicated. See 20 C.F.R. 404.1575.