Quote: I wonder if I should put myself in ESCROW!!
(Courtesy of fortune cookies)

Welcome to the Cool Spot of the Sun

Some of the can't miss softwares.

Nicest jabber Client PSI, try ursine.ca as jabber server, I suppose it has the most transports available.

Nicest command prompt based file explorer Midnight Commander, comes in both Linux and Windows version

Nicest integrated IM Kopete, very nice and normally doesnot get disconnected by the IM transports

Automated update for Debian APT, Apt is really apt in making ur system up todate.

Nicest Regex software Regex Coach, hey if you find it good, donate something to the developer

Nicest Graphical system(IMHO) KDE
Nicest x-window system plus Linux-like environment Cygwin

Most understated browser Konqueor, Many of the nicest features are not so obvious, like the feature to map network drive of almost every protocol, so that naive users dont have to use 'mount'.

Most nicest puzzle game KSokoban

Most understated thing about Unix(Linux) XDMCP, who needs client licenses anyways?

Most versatile Office software OpenOffice, can do pdf and a lot other conversions and is free!

Nicest html,php,etc etc (web)editor Bluefish

Nicest C editor Emacs, though i also use MC lot for this

Word Processor nearest like Wordstar Pico

POSIX: POSIX has many standards but the most famous are 1003.1a,b,c.
Following are some links on it
POSIX in realtime
POSIX, all standards
POSIX in HP-UX
POSIX in Digital UNIX
POSIX for Windows