Sentences I do not Understand

Arnold,

I agree with your statement that, "I guess I am skeptical about one's ability to pinpoint jobs created or destroyed by the Internet." Or anything else of a technical nature.

You also wrote, "However, when these motors were used in washing machines, vacuum cleaners, and other household appliances, women were pulled into market work, because housework took less time."

It just may be that these inventions caused a similar loss of jobs you attempt to describe and categorize. I suspect you will find that these household appliances are not the reason for women being pulled into the market, but a capital investment which destroyed much of the market for hired help such as maids, cleaning helpers, and nannies. The labor saving allowed the housewife time to do more of the household workload without additional hired help.

Women first entered the market permanently decades after these devises became common.

How about...

4. Businesses that aren't Internet businesses could become more efficient because of the Internet, and therefore scale up and hire more workers.

Now those are even tougher to pinpoint, and it stinks of multiplier -- as well as having its own counter-effects as the meat market hires a new butcher while it fires the admin. But isn't it the standard argument for why innovation is better for economies in the long run?