Web analysts - what happened on June 10th?

I love playing around with Flaptor's Twist trending engine for Twitter. Forget about the basket of third-rate applications that focus only on individual tweeters or the useful but not-analytic-enough trending/search engines like the old Summize or TweetTabs. Twist is an engine that a quant can fall in love with, especially at a time when the aggregate sentiment expressed by legions of obscure and previously unknown tweeters (viz.: the troubles in Iran, the outpouring of shock and grief at Michael Jackson's death) trumps the self-aggrandizing tweets of people with names like Kutcher or Kawasaki.

This morning, I was trending the frequency of the term "analytics" and I saw a huge spike on June 10th in the morning, where usage of the term "analytics" accounted for 0.1% of all tweets on Twitter (a prodigious amount when you consider that Twitter had 37 million global uniques in May):

http://twist.flaptor.com/trends?gram=analytics&span=720

Anybody know what caused the spike? Was it just a rush of organic chatter, or was it in response to an event that I'm not up to speed on? 4Q survey community: I'm turning this over to you. Any insight you can share will go a long way towards satisfying my curiosity.