I don’t really know how many people are debating on apologetics on YouTube since I’m not a regular follower of that community, though I do know one of the incoming links comes from YouTube from a Christian called AntiPelagian who has a collection of videos on apologetic related issues as well as politics. I only watched his video responses but he was using a lot of terminology and ideas that should immediately be familar to the presuppositionalist.
I only write this because several months ago I wrote about the possibility of using YouTube for outreach opportunities and it’s encouraging to know that some people are doing so. I hope there will be more Christians making impacts in whatever sphere God has placed them in.
AntiPelagian also writes a blog on Xanga.