Today's social networking web sites are operated for profit, and their revenue comes primarily from advertising.

For example, for the wo'th quarter of 2024, 92% of Reddit's revenue came from advertising.

[See] [FORM 10-Q - QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 - For the quarterly period ended March 31, 2024 - Reddit, Inc.], page 13 "Advertising revenue $ 222,682,000 Other revenue 20,281,000"