In the case of Pizza Pizza Royalty Corp, looking at the history chart for PZA below can help in judging whether the most recent dividend is likely to continue, and in turn whether it is a reasonable expectation to expect a 7% annual yield.

FORBES: PZA Dividend Yield Pushes Past 7%

Municipal bond ETFs are nothing new. iShares, SPDR and PowerShares all offer municipal bond ETFs that either focus on particular states, like the iShares California AMT-Free Municipal Bond Fund ETF ( CMF), or provide national exposure to munis, like the Insured National Municipal Bond Portfolio ETF ( PZA) from PowerShares.

FORBES: Tax-Free ETFs For The Little Guy