Do you put a comma after the word nowadays?

"Nowadays" is not typically followed by a comma. It's an adverb that usually acts as an introductory phrase, and introductory phrases should be followed by a comma only if they are more than four words long.

Examples:

* Correct: Nowadays, people are more connected than ever before.

* Correct: Nowadays people are more connected than ever before.

However, if "nowadays" is used in a different context, it might require a comma. For example:

* Correct: We are living in a very different world nowadays, compared to just a few decades ago.

In this case, "nowadays" acts as a parenthetical phrase and is set off with commas.

Ultimately, the use of a comma depends on the specific sentence structure and meaning.