• AddBonus
Pays subcribers to read emails and click through the sponsor links

• BirdMail
BirdPoints are awarde for reading and sending email. These points can be redeemed for prizes

• Dollars4Mail
Pays up to 25 cents a day for banner clicks

• ECash
Pays subscribers to read sponsor emails

• email4money
Reward system not stated. Web based mail with 2MB limit

• Keftamail
2MB storage and "points" payment for use and referrals

• MailRound
Send"stamps" with your email to obtain rewards you can spend with rewards partners

• Mintmail
Does not provide an email account but pays subscribers for reading sponsored mail

• NightMail
Free email with points for sending email and referring members

• The Mail
5MB free mail account that pays for mail read by you and your referrals. Tends to be a bit slow at times

• ZWallet
2MB email account that pays by page views for your use and your referral's use. Good and useable features