online storage:
http://www.humyo.com/

http://drop.io/

http://skydrive.live.com/

online docs
http://docs.google.com/

http://www.google.com/ig

AntiVirus
http://www.avast.com/

system optimizations

http://www.ccleaner.com/
CCleaner is a freeware system optimization, privacy and cleaning tool.

http://www.iobit.com/advancedwindowscareper.html

Editor
http://notepad-plus.sourceforge.net


system information programs
http://www.cpuid.com/pcwizard.php

The Belarc Advisor builds a detailed profile of your installed software and hardware
http://www.belarc.com/free_download.html

Smart Defrag
http://www.iobit.com/iobitsmartdefrag.html
http://mydefrag.com/

FTP
http://filezilla-project.org/
http://www.coreftp.com/

IP Tracer/Find IP address of a website
http://www.ip-adress.com/ip_tracer/

http://www.selfseo.com/

http://www.yougetsignal.com/

http://geotool.flagfox.net/

Starter

Starter is yet another startup manager for Microsoft Windows
http://codestuff.tripod.com/products_starter.html

Flash Movie Player
http://www.eolsoft.com/download/

Download Manager
http://www.freedownloadmanager.org/

Zip
http://www.7-zip.org/