First, thanks to all for a great conference. I had a marvelous time meeting a lot of people, and look forward to future conferences. I'm currently working on a survey of email accounts. I've spent some time writing a series of questions that ask users how many accounts they maintain, and for what purposes. It's a brief survey, under ten minutes. But now (as always), I need to find a sample population. The first temptation is to spam some mailing list somewhere: after all, mailing list users are likely to maintain multiple accounts, and so the sample would be broad. But I wouldn't want to get spammed myself, and I don't think anyone else does, either. So I'm looking for other good sources of subject pools. Where do you find sets of internet users? Danyel