Regular on the web

• Web regular
• Blogger, e.g.
• Facebook member, e.g
• YouTuber, e.g
• Surfer of sorts
• Chatroom frequenter, e.g
• One online a lot
• Frequent chat room visitor, perhaps
• Spot round by north-east with space for dedicated surfer

Wiktionary Word definitions in Wiktionary
n. (context computing English) a member of the community of Internet users