List of Internet phenomena

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries.

This is a partial list of social and cultural phenomena specific to the Internet, such as popular themes, catchphrases, images, viral videos, and jokes. When such fads and sensations occur online, they tend to grow rapidly and become more widespread because the instant communication facilitates word of mouth.