DropCopy is a insanely easy way to share files over your local network. Thanks to bonjour and it’s simple configuration, it is the perfect program for quickly sending files to other users on your local network.
There is a iPhone version too, Mobile DropCopy. There is a lite version, and the full version (which is $4.99).
If you’re in a Apple-centric LAN it’s perfect. Unfortunately there are only OSX and iPhone versions.
Sikuli is an automating script builder gui system. So it automates tasks.
It has a lot of potential and could become very user friendly if it was combined with automator.
http://127.0.0.1:631
CUPS (Common Unix Printing System), is running by default on OSX systems as the print server. The web interface allows you to easily administer the CUPS server. You can even have it send an RSS feed to a printer when your computer starts.
http://michelf.com/projects/multi-safari/ is the site where you can download all the old versions of Safari. You can have the newest version of Safari installed on OSX and these Safari apps won’t interfere or over-write the new version. They’re stand-alone applications, so the packages contain all the libraries needed to run the old versions. A must have for testing.