Why Google wants to buy Twitter in one picture.
When a simple message from a Twitter user is popping up #1 on a search for a high profile musician (Jenny Lewis) and her concert at a high profile venue (The Fillmore), you know that Twitter is creating tremendous SEO value. And they are becoming a very disruptive force. This is happening throughout the Google Index right now.
Google knows this though, so the cynical part of me expects a few gentle algorithm tweaks that will push Twitter messages down the Page Rank stack. But that might not be enough. Hence the acquisition discussion.