The best known economic research firms are all saying that the American Recovery and Reinvestment Act (federal stimulus) has added between 1.6 and 1.8 million jobs. They further report that they expect the ultimate impact will be closer to 2.5 million. The Congressional Budget Office actually considers these numbers to be conservative.
The New York Times offers a few charts that give some interesting perspective, far beyond the partisan right wing talking points. Whether it is jobs, the GDP, or the stock market, the impact of the Recovery Act has been very effective. It is too bad that so many on the right are too invested in the failure of our economy to see the positive signs.
As an aside: Think Progress has tallied 110 legislators that voted against the stimulus but then touted the funding back at home. As has been noted elsewhere, Paul Ryan is certainly on the list of stimulus hypocrisy.
UPDATE: The Center for American Progress has launched an interactive map showing how many jobs were created/saved by the ARRA.