URL Guard is a free and useful website uptime/downtime monitoring application. Website downtime does not mean to much to normal people but it can be especially important  for hosting companies and webmasters who depend on their websites uptime. A short period downtime means potential loss of income for hosting companies and webmasters. If the downtime is too long, it will affect and might cause lose of customers. Monitor your websites uptime/downtime, URL Guard is here to help!

Firefox Throttle & IE Throttle are FREE plug-ins for the two most popular browsers and of no interest to most people, but might be interesting to webdevelopers to monitor real page weights, page load times at different connections speeds, etc.