Catching up on reading

Some reading to catch up on for those who have been away:

Online holiday sales drop for the first time ever, by 2.3 percent, says MasterCard’s SpendingPulse, and overall store sales fell 3 percent.

Anxiety about the economy and their businesses affects entrepreneurs’ personal lives.

An unlikely startup ecosystem is budding in Argentina.

Angels don’t invest as much as people think.

And Web entrepreneurs build businesses with free labor.

Before it's here, it's on the Bloomberg Terminal.