Funny that a link to a post about effective linking first lands me on an advert page instead of directly to the content.

Average ocean depth

Also, here is a news article with more context about the image:

http://www.telegraph.co.uk/connected/main.jhtml?xml=/connected/2004/03/31/ecfvos31.xml

I am working on recreating this into an exhibit in Second Life, if anyone is interested in seeing the progress or helping out. IM Jeh Zon for details.

http://slurl.com/secondlife/Ho%20Su/234/16/23/?title=Nieman%20Spheres