Dreyfus Investments has announced that it is merging its Dreyfus California Tax Exempt Money Market into its General California Municipal Money Market, Class A on Friday, March 9. California remains the most popular state for Tax Exempt Money Funds due to its punishing 9.3% income tax (for income over $40K). Money Fund Intelligence tracks 43 CA funds with over $50 billion in assets. These funds currently average yields of 3.02% (as of 2/28).