The first is a short story that is basically a "garden path" toward this whole idea, and was a real jolt for me; you wonder why the narrator would be worried about this experiment going wrong, because she won't be harmed regardless. That world-view gets turned on its ear at the end of the story.

The second is longer, but still a pretty short story; I didn't see a version of it online independent of the novel-length collection it's published in. It explores the Star Trek transporter idea, in greater detail and more rationally than Star Trek ever dared to do.

The third is a huuuuuuge comic archive (totally worth reading anyhow, but it's been updating every single day for almost 15 years); the story arc in question is The Teraport Wars ( http://www.schlockmercenary.com/2002-04-15 ), and the specific part starts about here: http://www.schlockmercenary.com/2002-06-20 . Less "thinky" but funnier / more approachable than the others.