Other than it seems to only allows zooming in cities, its data is pretty wrong looking at the local map. I don't see the local manufacturing plant or any farm jobs.
Farm jobs are generally not included in the employment statistics gathered (nor for military occupations) for historical reasons. There was a push in the 80s the change that.
1) http://lehd.ces.census.gov/data/lodes/LODES7/LODESTechDoc7.0...