What meaningful info people want to see extracted from blockchain?

[alphageek]

I'm a data mining researcher and want to contribute to Bitcoin.
What meaningful info people want to see extracted from blockchain?

[piotr_n]

So far they've seen all they needed.
Coming out with new interesting chart- that's the challenge.
Not drawing it

[alphageek]

So far they've seen all they needed.

Do you?
What tools do you use? (apart from the obvious blockchain.info and blockexplorer.com)

[yakov]

Number of transactions to and from p2sh addresses plotted against time.
Could be interesting because I see many new tools about for 2-of-3 multisig and I wonder how widely they are used.

edit: here is an example of one such address being used.