Long a topic of discussion, insurers and reinsurers are beginning to enter the microinsurance space. Scor (SCOR) firm invested in LeapFrog Investments, the first microinsurance fund, last month, and last week, the Microinsurance Network was launched in an effort to raise awareness of the sector.

In a mature industry, microinsurance is seen as having considerable growth potential, especially given the large numbers of people around the world who live without any form of coverage. Microinsurance protection ranges from property catastrophe to life and health. A recent study by Lloyd's of London found that 135 million people, 5% of the world's low-income people, are using microinsurance products, but that the total market size could range from 1.5 billion to 3 billion.

The banking system has been crumbling for over a year, but last month's collapse of American International Group (NYSE: AIG) -- which prompted an $85 billion government takeover -- suggests that insurance is not immune from the problems. As a reminder, AIG got snared in the $62 trillion Credit Default Swap (CDS) market whose growth was spurred by McCain advisor, Phil "Americans are Whiners" Gramm.

And as insurance crumbles, banks keep suffering. Bank of America (NYSE: BAC) and National City Corp. (NYSE: NCC) are both hurting. How much?

• Bank of America's earnings plunged 68% to $1.18 billion, or $0.15/share -- missing by 60% analysts' forecast of 62 cents. Bank of America will raise capital by selling $10 billion of common stock and slashing its dividend in half from 64 cents to 32 cents. One analyst cut the bank's 2009 earnings estimate to $2.50 per share from $3 per share -- this is well below the $3.12 per share from a Thomson Reuters analyst poll -- and lowered his price target by $2 to $26.

• National City Corp. and its National City Bank both suffered debt downgrades from Fitch. For instance, Fitch slashed the bank subsidiary's long and short-term Issuer Default Ratings (IDR) to A- from A. And it lowered the bank and holding company's Individual rating to C from B.