I know how wise it is to collect email addresses so that I'll be able to send offers to them and get max ROI. But the problem is that I'm in the UK and there are very few Email-submit offers that I can use to make money. So I wanted to know how it works in the US or other countries. Do the guys who collect the email addresses spam them with loads of email-submit offers? Or do they send higher value offers (eg $30+) in the hope that some of them convert? I'm trying to figure out if it's worth me doing something similar in the UK.