Free monitor software for mac

WatchMouse Site Monitor - Checks your company site or personal website every one, 5, 15, 30 or 60 minutes and alerts you in case of problems.
Main features:
- Checks your website from 17 monitoring stations worldwide in case of an error.
- Automatically warns you if encounters 2 to 5 concecutive errors.
- Pauses when your own computer is not connected to the Internet.
- Shows the hourly availability of your website over the last 72 hours.
System requirements:
- Macintosh computer with G3, G4 or G5 processor
- Internet connection (either dial-up or any broadband: cable, DSL, etc.).

iTunes 4 introduced the ability to share music between computers. However, as of version 4.1, iTunes doesnt provide much information about who is connected or what is being shared. This utility monitors iTunes to provide a solution.
The iTunes application must be named "iTunes." In order to be recognized as music files, file names must have one of the following extensions: .wav, .wma, .sn2, .mov, .moov, .mp3, .aiff, .m4a, or .m4p. The iTunes Monitor cant associate a shared music file with a given remote user and files being accessed locally arent distinguished from those being shared. iTunes monitor cant display the name of a file which is being received. iTunes Monitor may not work properly if another application is being used to proxy music streams over the Internet (iTunes 4.0.1 only.)
Since lsof (the UNIX tool at the core of this application) doesnt reliably return complete path names, iTunes Monitor must scan your Music folder when a new file is encountered. It may take a few seconds after launching before it completes its analysis of the files and sockets iTunes is using and initially displays the information.
Enhancements:
- Added support for multiple music folders.
- Bug fixes: fixed memory leaks, improved responsiveness, fix for Panther.

Requirements:
Mac OS X 10.1 or later.

MIDI Monitor 1.2.4 is created to be a useful and intuitive utility for Mac OS X which can show incoming MIDI signals in a variety of formats, with filtering by message type and channel. Musicians will find it handy for tracking down confusing MIDI problems. Programmers can use it to test MIDI drivers and applications.

Website monitor 1 is a convenient program designed with the ability to perform the availability and response speed tests from different locations in US and Europe. The Mac Snapshot widget provides real time view for the latest performance and status data. It allows watching performance per each monitoring location.

AppleScript keeps an eye on one or more web pages through Safari, reloading them at specified intervals and reporting any changes it detects, both verbally and through a session log file.

AppMonitor is a small tool designed to watch the CPU usage of any process on your system. Useful for developer who want to control CPU usage of their program.

It features an auto-scaling graphic window, it supports when the "monitored" software is quit and waits until it is launched again (developers know what I mean: compile, test, recompile, retest...).

Best of all, its free, hehe. It was one of my first Cocoa applications, so dont ask for too much, but feel free to mail me if you have suggestions and/or bugs to report.

Monitor Mode is a simple application that shows live video from a video input device, either in a window or fullscreen.

It was intended for use with Epiphan VGA2USB devices, but also works with iSights and possibly other devices.

Together with a VGA2USB, you can use any Mac equipped with USB 2.0 as a monitor for another computer (e.g. your Linux server PC).