Simple Server Monitor
Simple Server Monitor is a powerful, yet easy to use server monitoring utility. It allows you to monitor the status of your servers and web applications from your desktop. Simple Server Monitor runs as a notification icon and you will be unaware that it is running - until a monitor fails. ... Simple Server Monitor also supports performance monitoring by charting the monitor response time and by logging (optional) all monitor queries to a log file and/or the event log. ... Supports Ping, HTTP/HTTP, FTP/FTPS, SMTP/SMTPS, POP3/POP3S, IMAP/IMAPS, and Custom monitors (supports SSL/TLS).
http://www.simpleservermonitor.com/files/setup.exe - 4Mb - Download - Screenshot

IPCheck Server Monitor
IPCheck Server Monitor 5 helps organizations monitor critical network resources and immediately detect system failures or performance problems. It offers reliable network and website monitoring using Paessler's IPCheck? Technology, fast and easy installation, support for Windows NT/2000/XP/2003... Various sensor types including PING, PORT, HTTP, HTTPS, Advanced HTTP, HTTP Transaction, DNS, SMTP, POP3, SNMP and custom sensors are supported for in depth monitoring of almost any network device. ... The Freeware Edition monitors up to three sensors and is limited to PING, PORT and HTTP sensors...
http://download2.paessler.com/download/ipcheck.zip - 16Mb - Download - Screenshot

Easy Network Service Monitor
Easy Service Monitor is a network fault management tool that continuously monitors network devices and services. If something went wrong, it will alert you by email/phone/pager BEFORE problems get seriously out of hand. A detailed log file will record every event of the monitored targets and can... You can configure the system so that when something goes wrong, a set of actions, such as execute a program, reboot server or update web page, will be triggered.
http://www.javvin.com/emonitor.exe - 2Mb - Download - Screenshot

HSLAB HTTP Monitor
Real-time performance monitoring solution for Apache servers. HSLAB HTTP Monitor is a handy real-time performance monitoring and statistics analysis software application for Apache servers, which are used ubiquitously in the web hosting industry. Basically, with HSLAB monitoring system... That is the server running on Apache may be located thousands of miles away, while the program (HSLAB HTTP Monitor) could be installed on home or office PC and the system administrator will always have access to server?
http://www.sys-monitoring.com/downloads/hslab-http-monitor.exe - 3Mb - Download - Screenshot

A1Monitor Network Monitor TCP or Web
Monitor multiple web or TCP servers (http, https, ftp, pop3 etc. ) Receive email notification by email or pager if any can't server can't be reached a number of times in a row. A1Monitor can reboot your NT server or run a batch file or program for you. ... ) Support for http proxy server for http and https monitoring. ... Supports http, https, ping, ftp, telnet, pop3, smtp, dns, imap, dns, or any other TCP port you want. ... Monitor Ping requests to any IP address. ... Supports URL basic authentication (http, https only).
http://files.a1tech.com/files/a1monitor.exe - 3Mb - Download - Screenshot

Monitor Wolf
Is your Web Site Working Right Now? Let your PC watch your web site every minute of the day! Accurately measures the performance of any web site. Tracks server response using Active Ping technology, verifies DNS resolution and monitors HTTP visibility. ... Monitor Wolf can contact you immediately when a problem occurs so you know what is happening in "real time". ... Monitor Wolf measures important response parameters from any website including "average response time", " min/max response time", "slow response percentage", "Up-Time percentage" and much more.
http://www.lonewolf-software.com/MonitorWolf/MWsetup.exe - 6Mb - Download - Screenshot

Right Web Monitor
Right Web Monitor is an ultimate web monitoring solution able to detect changes in all kinds of internet resources. The program can monitor any web pages (static and dynamical), text and binary files which can be accessed through the HTTP, HTTPS and FTP protocols. ... Using such scripts the program can monitor pages which can't be accessed directly but only through several interim pages/form submissions. ... Other features include: Internet Explorer integration, automatic startup, the ability to work via a SOCKS and HTTP proxy servers, multiple encodings support, changes highlight, program...
http://www.right-soft.com/ftp/webmon.exe - 3Mb - Download - Screenshot

Sentry-go Quick Server Monitor
The Sentry-go Quick Server Monitor allows you to easily monitor your Microsoft Windows Server, take automatic action and/or alert you to issues should they arise. Quick & easy to install, configure & manage, Sentry-go allows you to concentrate on your other jobs while it monitors the server. ... HTTP, HTTPS, FTP ports and system & software such as CPU usage, % Registry in-use or any performance counter. ... You can monitor key Windows services or custom services, important processes that should or should not be running, network & TCP/IP connectivity - e.
http://www.3ds.co.uk/sentry-go/shareware/qserver.exe - 4Mb - Download - Screenshot

Right Web Monitor Pro
Right Web Monitor Pro is an ultimate web monitoring solution able to detect changes in all kinds of internet resources. The program can monitor any web pages (static and dynamical), text and binary files which can be accessed through the HTTP, HTTPS and FTP protocols. ... Using such scripts the program can monitor pages which can't be accessed directly but only through several interim pages/form submissions. ... Other features include: Internet Explorer integration, automatic startup, the ability to work via a SOCKS and HTTP proxy servers, multiple encodings support, changes highlight,...
http://www.right-soft.com/ftp/webmonpro.exe - 3Mb - Download - Screenshot

GFI Network Server Monitor
GFI Network Server Monitor automatically monitors the network & servers for failures. It allows you to identify issues and fix unexpected conditions before your users (or managers) report them to you! Alerts can be sent by email, pager or SMS, for instant problem notification. ... You can also write custom monitor functions in VBscript and leverage ADSI and WMI, allowing you to monitor virtually anything. ... GFI Network Server Monitor is easy to set up and use, and is competitively priced. ... Built-in monitoring rules include: Exchange Server 2000/2003, MS SQL, Oracle and ODBC databases,...
http://software.gfi.com/networkservermonitor7.exe - 13Mb - Download - Screenshot