Below is how New York's new law requiring social media sites defined the covered sites. It's based on how the site works, specifically if they have an "addictive feed" which is defined in the law. I'd expect most laws concerning social media would be drafted in a generally similar way.

> "Addictive feed" shall mean a website, online service, online application, or mobile application, or a portion thereof, in which multiple pieces of media generated or shared by users of a website, online service, online application, or mobile application, either concurrently or sequentially, are recommended, selected, or prioritized for display to a user based, in whole or in part, on information associated with the user or the user's device, unless any of the following conditions are met, alone or in combination with one another:

> (a) the recommendation, prioritization, or selection is based on information that is not persistently associated with the user or user's device, and does not concern the user's previous interactions with media generated or shared by other users;

> (b) the recommendation, prioritization, or selection is based on user-selected privacy or accessibility settings, or technical information concerning the user's device;

> (c) the user expressly and unambiguously requested the specific media, media by the author, creator, or poster of media the user has subscribed to, or media shared by users to a page or group the user has subscribed to, provided that the media is not recommended, selected, or prioritized for display based, in whole or in part, on other information associated with the user or the user's device that is not otherwise permissible under this subdivision;

> (d) the user expressly and unambiguously requested that specific media, media by a specified author, creator, or poster of media the user has subscribed to, or media shared by users to a page or group the user has subscribed to pursuant to paragraph (c) of this subdivision, be blocked, prioritized or deprioritized for display, provided that the media is not recommended, selected, or prioritized for display based, in whole or in part, on other information associated with the user or the user's device that is not otherwise permissible under this subdivision;

> (e) the media are direct and private communications;

> (f) the media are recommended, selected, or prioritized only in response to a specific search inquiry by the user;

(> g) the media recommended, selected, or prioritized for display is exclusively next in a pre-existing sequence from the same author, creator, poster, or source; or

> (h) the recommendation, prioritization, or selection is necessary to comply with the provisions of this article and any regulations promulgated pursuant to this article.