"Find web pages that are similar to"

related:

[SEoptimization]

for all of its innovation and relevance on Organic Search -
Google's "Find web pages that are similar to" search option (related:)
still - has not made the grade...

What suggestions do you have to Google for improving this potentially valuable tool...

[plasma]

I think it works like this:

If (a links to b) AND (a links to c) => b and c are related.

It never showed any useful results to me.

[bignet]

me think it no works