Is the word internet ever capitalized within a sentence?

The word "internet" is generally not capitalized within a sentence, unless it's at the beginning of the sentence or part of a proper noun.

Here's why:

* Common noun: "Internet" is a common noun, referring to the global network of computers. Common nouns are not capitalized unless they're at the beginning of a sentence or part of a proper noun.

* Proper noun: "Internet" can be part of a proper noun, like "Internet Protocol" (IP), in which case it would be capitalized.

Examples:

* Not capitalized: "I checked the internet for information on the topic."

* Capitalized: "The Internet has changed the way we communicate."

* Capitalized as part of a proper noun: "My computer uses the Internet Protocol to connect to the network."