Zeus Panchenko

I use dcraw already 3 year and sure will use it further since it has all you need to convert any RAW format image to anything you want

It's CLI tool and namely that makes it the best converter.

Simple in usage, powerful in capabilities, all (though may be not absolutely all, but it is the question of time, i'm sure) RAW formats chewing.

It's my honest opinion: dcraw is the tool, each one interested in good quality RAW files conversion must have!

The capabilities of mailfromd could be described as: "Absolute control upon whole SMTP session".

I really do not know (though not pretending on absolute in this) more flexible SMTP filtering tool.

It cooperates with ClamAV and SpamAssassin and does that better than native milters supplied with them, it can call system commands and run what you want for the conditions you are defining.

It light and resources friendly, it was created to resist really heavy SMTP load.

My honest opinion it is the "must have" tool for SMTP admins.

ExifTool is the best tool to deal with EXIF data!

You have to try it to see that. Any type of EXIFs, read/write according the RFC (and sometime more :)) )

Rather fast, though perl. It has anything you could wish.

The best visualisation project for Nagios!

I was much pleased to study NagVis. It is simple but powerfull and flex.

If you need to visualize your Nagios monitored data, you have to try it!