References:

We wish to thank all the people who helped us, especially our coach Ms Lin. Also, we would like to express our thanks to the websites which has given us lots of information listed below:

Wikipedia. 26 Jan 2009

hk knowledge yahoo. 1 Feb 2009

Wikianswers. 05 Feb 2009

"Abstraction wallpaper." 19 Feb 2009 <http://abstract.desktopnexus.com/wallpaper/29770/>.

"ICQ logo." 27Feb 2009 <http://www.geewa.com/img/corporate/icq_logo.png>.

"Space." 6 Mar 2009. 30 Mar 2009 <http://www.backgroundcity.com>.