On a messageboard or anything similar, to browse the board very often, but without ever posting anything.

A term used to reference cannabis/marijuana/weed.

To read without commenting or contributing, therefore effectively invisible to the rest of the group or community. Generally recommended for joining any forum so that you can observe rules, attitudes and prominent personalities without jumping in and breaking a rule, making an ass of yourself, or asking a question about something obvious that you would have learned for yourself if you’d paid attention in the first place.

Online equivalent of attentive listening before speaking; potentially the solution to all Internet faux pas.

Lurk - A word that can be used as a substitution for any word in a sentence in order to convey special or particular meaning

A person who, though standing with a group of "friends," fails to make conversation or say anything of interest. Commonly used as a derogatory term for someone quiet or untalkative.

A person who repetitively stalks/ convulsively checks someone's Tweets, Wall, Posts, or blog entries without posting or without the knowledge of the person. Someone who regularly checks someone's social interactions from the safety of their dimly lit room.