Links (hyperlinks) from one page to another page forms links in a chain. Counting the links from page to page to page (with no repeats) until you run out of links, tells how long the chain is. If you count the links from this page to its linked pages, then to pages linked to by those pages, and so on, the average chain length will be the same no matter what links are chosen to be followed and counted.
The red dots in the following diagram show a chain of eight links:
Because of the topology of the web, the average distance will be the same in any direction.
So, effectively, this page is at the centre/center or middle, of the web -- I can say it is the middle of the web.
But then so is every other page :)Here is an alternative view of where the centre of the Internet might be located http://www.isi.edu/ant/address/index.html
Roget's Hyperlinked Thesaurus
World Clock http://www.timeanddate.com/worldclock/
John Old http://www.johnold.org/