Indeed. But I'm still not at all convinced that the OP is actually after a simple top 10 from 715 million records.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^3: Limit the size of a hash (beware of 'add one and (re)sort and discard' algorithms) by BrowserUk
in thread Limit the size of a hash by Dr Manhattan

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