__/ [ Big Bill ] on Wednesday 01 March 2006 15:18 \__
> On Wed, 01 Mar 2006 14:19:41 GMT, xyZed <xyzed@xxxxxxxxxxx> wrote:
>>I've heard the phrase a few times, is there an accepted definition of
>>whether a site is an authority site or not, or is it mostly
> Authority sites might mean government sites, military sites, education
> sites, like university sites, or trade association sites, or just even
> a site on Star Trek that was long-established and had a billion
> inbound links from other established Star Trek sites, f'rinstance.
Good answer. Authority sites can also be based on graph analysis and sub-
sequent classification. If you draw the links between one site to its
neighbourhood, it often looks like a big pool with linear connections.
It's down to some graph analysis. An authority site looks like a spider
that many neighbours (nodes/sites) are connected to, but does not neces-
sarily contribute back (links). Such sites are admired, but do not rely on
mutuality, e.g. blogrolls and link exchanges.
I think IBM did some research on one's ability to tell apart authority
sites, which are worth identifying for many reasons. They conceded the
race against Google, MSN and Yahoo several years ago, I suspect.
Hope it helps,
Roy S. Schestowitz
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