Flagged because this is shamefully ripped off from Labnol.org.<p><a href="http://www.labnol.org/internet/website-uptime-monitor/21060/" rel="nofollow">http://www.labnol.org/internet/website-uptime-monitor/21060/</a>
Off topic, but this makes me wonder what kind of weird social engineered virus one could propagate through google docs spreadsheet by people just blindly filling out a sheet when instructions are posted In a random blog post.