Unless you've actually used a decent newsreader like trn, It's difficult to appreciate just how much we've given up by moving most online discussions to the web. Loss of threaded discussions isn't the worst of it -- many of the web-based discussion boards I frequent don't even properly track <i>which messages you've actually read</i>, using a vague "last time you visited" heuristic instead.<p>I miss being able to catch up on all my discussion topics using almost nothing except the space bar.