OpenOffice Free open source office suite 99% compatible with Microsoft Office suite

NeoOffice/J Free open source office suite based on OpenOffice for Mac OS X

Lotus Symphony Free Office Suite from IBM

AbiWord AbiWord free word processor

Scribus Scribus is a free professional desktop publishing application for Linux and other *nix base systems.

GnuCash Free open source accounting software

KMyMoney Free accounting software for Linux

HomeBank Free personal accounting software

Money Manager Ex Free easy to use personal finance software

Gnome Planner Free project management software