Have you checked out Google Trends yet?

As I see it, it can be used to track anything that changes over time that is reflected in what people write about and read about on the internet. So what about social relationships? Celebrity relationships certainly change over time and we definitely love talking about them. Are you on Team Jolie or Team Aniston? Check out how (in the graph above and here) Aniston used to track Pitt and now Pitt appears to track Jolie. Ha!

And then there's the TomKat trend that came out of nowhere on approximately May 22, 2005.

Ok, now that there's a quantiative tool that can be applied to celebrity gossip, we need to find a practical use for the data.

[update: some more fun ones:
Steelers v. Seahawks
John Kerry & John Edwards v. George Bush
Romeo & Juliet (looks like they're still going strong)
]