[Paine in the Neck]

You missed the point. Without doing it digitally, they have no meta data to work with. If this is all they are employing, then it is very easy to render them, blind.

Not to seem contrary but I think you miss the point. Metadata encompasses more than just digital info; that's just the easiest to collect. Social networking theory encompasses more than Facebook and Twitter. If you care about this stuff then you should read the links I posted above.

[mazda77]

OK smarty, off to Burger King you go.