At the Fox & Hounds website, Joel Fox reports that “signatures calling for a referendum on the so-called Amazon tax law requiring out-of-state Internet companies to collect sales taxes from California buyers are piling up.”

If enough signatures are collected in the short 90-day window permitted for referendum petitions — and Fox is predicting that Amazon’s signature drive will, in fact, finish early — the tax would be stayed from going into effect until the voters get to decide the matter at the June 2012 primary election.