It's a good idea, but, as the Daily News noted in an editorial today, a web site based on voluntary compliance isn't enough.
Moreover, as the Daily News pointed out, City Council President Christine Quinn "should have instituted this type of disclosure long ago" regarding "the Council's $50-million-a-year slush fund... a font for thievery." (Indeed, former Council Member Miguel Martinez is n prison and Council Member Larry Seabrook has been indicted.)
Public Advocate or Comptroller
I'll add that it's not necessarily something the Public Advocate must do, since Comptroller candidate David Yassky had the same idea during his campaign, and even set up a web site, It's Your Money NYC, featuring 2009 budget data (but not 2010 budget data), albeit…