If you like top-level business market strategy, check out this short New York Times interview with Intuit’s Stephen Bennett. In an age of meaningless corporate PR-speak, this seems refreshingly frank.

He discusses how Intuit has two one-billion dollar revenue streams: small business (QuickBooks, Quicken) and consumer tax (TurboTax). Now it’s trying to grow two more, possibly in online banking and health care expense management. The first one seems like a natural extension. But health care expense management? That surprised me, because I didn’t see it as an obvious next step for Intuit. A good lesson for any entrepreneur: what’s the next, unobvious but related step toward diversification?