Gmail: research from Return Path suggested Gmail ended 2010 with some 193 million users. This is just one email provider in the world of the internet. Gmail users may be more active, however.
For example, email service provider Mail Chimp publishes the total number of emails they send to each of the major email address providers
All the Tajikistan Email Lists, sales leads, email addresses list, target lists like business leads and consumers leads etc are highly segmented for you to make your marketing more refined
The results for July 2011 saw Hotmail and Gmail addresses as the most “popular” in mailing lists, closely followed by Yahoo! Mail,

with AOL way behind. I think the reason for this is because they are Free and you can get more than one when one of them get’s to much you just stop using it.