Are you asking "how does the recenlty passed stimulus bill affect me personally right now?". If so, please check out this great summary of the tax provisions of the new "American Recovery and Investment Act of 2009" from our partners at CCH, Inc. Please click here to read this summary on how the new provisions can/will affect your tax situation, whether from a personal or business perspective.
It remains to be seen if these provisions along with some of the other "stimulus" provisions of this bill positively affect our national economy to any great degree since many government programs such as these tend to deliver much less than advertised, but we at TaxSmarty are always in favor of giving back dollars to the american people through tax cuts of some kind (preferably the simpler the better and more immediate than not!).