If that ever gets to market, it should give business jets more of a run for their money plus the alternative power source will boost your green credentials a little.

FORBES: Helicopter Industry's Success Secret: Market Diversity

Also driving the mergers: the need to boost listings, a core source of revenue for the exchanges as they battle to preserve their share of trading volume against competition from new market entrants like Kansas City-based BATS Trading, which siphons about 8% of Nasdaq's daily volume and 5% of NYSE volume.

FORBES: NYSE Looks For Options

In a depressed economy, most would say that any boost is welcome, however unlikely the source.

BBC: A welcome boost - unless you're a bank

The revenue source proposed by both Senate Democrats and House Republicans would boost fees that Fannie and Freddie collect from lenders.

WSJ: Fannie, Freddie Put Forth to Cover Payroll-Tax Cut