I was reading some blog posts this morning when I ran across a post at Dangerously Irrelevant with a link to an online stopwatch. Actually, it can count both up and down. Scott says he uses it for presentations. I can see using it when I do timed writings with my students — especially when I leave my timer back in the office! Anyway, I thought it was a cool tool. If it sounds like it might be useful to you, I hope you will check it out.