There have been quite a few high profile outages recently, although I don’t think correlated.

At the suggestion of several kind people here, I started publishing quarterly round ups of all the major outages on the StatusGator blog. We have lots of data about outages, though the last post took a mostly qualitative approach. Hopefully we can get more sophisticated with it in the future and be more quantitative, perhaps funding outages that affect or cause other outages.