Online Tag: When you have the same friend on 4 or more social networks, or instant messengers, and nearly miss them everytime. Usually this involves keeping the same browser window open, not opening tabs.
You just switch from website to website hoping to catch a minute of conversation.
It's more entertaining than sending emails.
Guy: Hey I finally reached you!
Guy2: What do you mean?
Guy: I was playing Online Tag all morning!
Guy2: Sorry, I was all over.