I searched and couldn't find anything — though that surprises me.
It feels like there are hard to express differences between knowing a person in real life - people I work with, people I went to school with, that sort of thing - and knowing a person online, such as people you play online games with or people you interact with via forums and posts.
I still feel like I know these online-people, or at least, some slice of a persona that they present to me — but the word 'know' doesn't quite feel right, as it at least feels like it should be more different than the word I use to describe knowing someone in real life.
However, guy-I-know-online or lady-I-know-from-forum-postings is really awkward and doesn't feel right either. Is there any word that has any kind of common use that attempts to address this difference?