A wide range of businesses need workers to enter various data into their systems, whether that data are used to track inventory or shipments, create business plans, or measure performance or output. And since a computer and typing skills are the most important requirements for this job, many data entry workers are able to work at home, and on a schedule that fits their lives.
Like Airbnb, becoming a ridesharing driver for companies like Uber, Lyft or Sidecar is a way to join the shared economy. And though it is not technically earning money from home, it allows the same kind of flexibility and it is a way to use an asset you already own (i.e. your car) to make money. There are things to keep in mind, though, about driving other people such as whether your car insurance will cover you and how you pay taxes on your earnings.