Hello,
I have a list of emails of reviewers from amazon.com.
There is about 170.000 of emails.
reviewers on amazon are persons who posts products reviews so they are advanced users and could be good target.
With emails goes additional data like name, city, occupation, ranking (not every user have all data however)
Price is 100$ because getting those emails is not simple - there are no listings of them, only mundane scraping allows to gather them.
There are calculations that there is no more reviewers with emails than 250K - on whole US amazon, so 170K is great number of them.
Let me know if you are interested.
Regards