If you host or manage or are responsible for a web site the number one thing you have to know is …   Are my sites up?  A service at AreMySitesUp.com handles this issue in a seamless and easy to manage way.  So whether you are responsible for 5 sites or 100 sites, you can know within minutes if any of your sites are down and begin working to correct the problem – even before it is ever reported to you.

AreMySitesUp.com provides both FREE and paid service.  The free service is great.  It allows you to monitor up to 5 sites and receive email or SMS when any of the sites go down.  It checks the sites about once an hour at this level.  Not bad if you are running less than critical sites.  For more important sites or if you monitor a lot of sites, you may want to check out their paid service.  For $75 a  year, you can monitor up to 100 sites with checks every 15 minutes.  All the premium services check the sites’ status with greater frequency, provide RSS feed instant checks and are advertisement free when you visit the web site.

Other features include, iphone/itouch application, twitter integration (really not sure what this looks like or why anyone would care), and reports of time a site was down and when it came back up.
aremysitesup

All and all a good service.  The free service takes care of most our needs, but the paid service provide a little extra speed and the ability to monitor a lot more sites.  For more information, visit http://bit.ly/17FBiu.