Few minutes ago this same blog, hosted on Blogger started giving 502 Server Error (for more than 15 minutes). I was frustrated and even thought of hosting my blog on one of my servers. I don’t know what caused the issue, but one thing I know this is not the first time and I was not alone; Even http://xooglers.blogspot.com/ was down (giving 502 errors). See http://www.flickr.com/photos/seeminglee/2050618571/in/set-72157603261415176/ for another instance where this issue shot up.
Googling for a cause landed fruitless, my likely guess is blogger servers were overloaded. Hope this doesn’t happen again.