We have also found the following links usefull or simply interesting and worth taking a look.

Free Office suite programme
The FREE alternative to Microsoft Office. OpenOffice is both a fully-featured office suite compatible with leading office products.
http://www.openoffice.org

Invest NI
Business help for NI businesses
http://www.investni.com

Postcode Finder
A usefull free tool to find either the address or postcode of uk businesses etc.
http://www.postcodeanywhere.co.uk