User accounts: If a site allows visitors to create their own accounts that they can log into, then that's a good sign there's going to be social interaction.

You can't really share information or interact with others online without doing it through a user account.

Profile pages: Since social media is all about communication, a profile page is often necessary to represent an individual.

Although the difference is subtle, they're not the same.

Social networking is really a subcategory of social media.

Networking, on the other hand, has to do with who your audience is and the relationships you have with them.

Your network can include people like friends, relatives, colleagues, anyone from your past, current customers, mentors and even complete strangers.

Friends, followers, groups, hashtags and so on: Individuals use their accounts to connect with other users.

They can also use them to subscribe to certain forms of information.

Like buttons and comment sections: Two of the most common ways we interact on social media are via buttons that represent a "like" plus comment sections where we can share our thoughts.

Review, rating or voting systems: Besides liking and commenting, lots of social media sites and apps rely on the collective effort of the community to review, rate and vote on information that they know about or have used.

News feeds: When users connect with other users on social media, they're basically saying, "I want to get information from these people." That information is updated for them in real-time via their news feed.