How Are Socialism and Communism Different?

They are both bad.
It is like choosing between arsenic and strichnine.

There is, in my opinion, a common flaw in the article. Social welfare programs (such as free college tuition, universal health care and subsidized child care) are NOT socialism in theory, or practice.

Socialism - a political and economic theory of social organization which advocates that the means of production, distribution, and exchange should be owned or regulated by the community as a whole.

Free college tuition, universal health care and subsidized child care are Social Welfare spending, more accurately "State mandated charity." And if you want to be negative, forced redistribution of wealth. In practicality The fruits of labor of one group of citizen's is seized by the government and used for the benefits of another group of citizen's, resident aliens, and illegal aliens. In the case of the United States, it is a societal contract agreed to by the electorate. But quite literally there is no requirement on the part of the recipients of the state mandated charity to contribute in the production, distribution, and exchange of goods or services, and most of those that contribute to the production, distribution, and exchange of goods or services, are not eligible for those social welfare programs.

So, I look askance at claims that the Nordic Countries are socialist in nature. They just allow a great deal of the government mandated charity camel under the tent flap.

Communism = When the means of production are owned and operated by the people, and the profits are equally shared amongst the people.

Socialism = When the means of production are owned and operated by the State, and the profits are taken by the State, who may or may not dole out a portion (of their choosing) to the people.

Nazis were National Socialists. "Nazi" is the shortened moniker for National Socialists in German.

Class dismissed.