1)   Radar Website Monitor 4.6.1.7
Radar Website Monitor is a multithreaded website monitoring tool, watching different protocols, including HTTP(S), SMTP, POP3, FTP, TCP. It can log the server performance, generate real-time reports, and notify you upon detection of problem or error.

 2)   QuickWebSecure Web Security Software 1.0
Free 30 day Web Site Security Software Subscription - Monitors/Updates your website(s) and alerts you by email when files get changed, and reloads or updates changed files with the most recent changes you make from your mirrored local server.

 3)   VisitorVille 3.1.5
VisitorVille lets you watch your website's traffic like it's a videogame. It literally brings your site's traffic to life, casting your visitors as animated characters in a virtual city. Dozens of reports. Integrated Live Help. Click analysis + more.

 4)   ManageEngine Applications Manager 6
Applications Manager is a web-based monitoring tool that manages applications, servers, databases, systems, services, websites, and JMX/SNMP-based custom applications in a complex IT infrastructure. It also offers fault and performance management.

 5)   Website Monitoring Expert 4.5.8
Website Monitoring Expert is a multithreaded website monitoring tool, watching different protocols, including HTTP(S), SMTP, POP3, FTP, TCP. It can log the server performance, generate real-time reports, and notify you upon detection of problem or error.

 6)   ServerRadar Server Monitor 5.1.1.3
ServerRadar is a powerful and easy to use website monitoring software. It can monitoring your website, mail server, ftp server, Database server and DNS server. Immediate notification in the event of server errors and HTML reports are also available.