I’m trying to access gmail.com and I’m getting a 502 server error. This never happened to me before although I know there have been issues in the past.

It’s been an hour already and it still doesn’t work.
Update:
- some of my accounts are working now
- it’s on BBC news
Update2:

Same problem here, in snowy Vilnius… Already for 2 hours now! Global Gmail Crash?
Same problem in Sydney. Why no announcement on Google website?
Haifa; all the same
Same here in the UK
@Gregor: issue resolved – see Update2.