Do you know what a fortnight is?
I am from:
Note that the "country" boxes are check boxes, enabling you to select multiple countries if, for example, you grew up in one country and now live somewhere else. I've separated out the US and Canada because I think Canadian English tends to be influenced by British English, but left Australia and New Zealand together because I simply don't know many people from either place. I'm not sure the poll is wonderfully comprehensive or offers all options, so feel free to continue in comments. A better way of asking about location might be to ask what flavour of English you think you speak (British, Irish, US American, etc), but I'm not sure whether people would find that easy to answer, or how many of us on the internet speak only one dialect.
I believe the people on my friends list are an unusually literate lot, so this is something of a biased sample. Feel free to link to the poll from your own journals to get a wider sample.