Securenym
Web-based e-mail with SSL security features. User can opt for either the Webmail version, or can use the service with his/her own e-mail client.

eioMAIL.com
E-mail service with no advertisements, a clean, easy-to-use interface, and spam filtering.

Dreamersi.net
Offers e-mail services for small-to medium-sized businesses that are not ready to have an in-house server or do not want an internal mail server.

E-MailAnywhere.com
Has many of the standard features, though lacks filtering. Provides a "Briefcase" which allows storage of files on provider's server for future use.

1A Mail
This site offers permanent e-mail addresses, both web-based and POP3. 1AMail also offers forwarding services, mailing lists, aliases, auto-responders and vacation modes.

SEND-E Professional Mail
Web based email solutions for professionals (businesses, OEM, portals, resellers) at send-e.net. Offers encryption, multiple accounts, and personalized domains.

Lisa.com
lisa.com is simply an e-mail forwarding service, not a regular e-mail account. There is no inbox, or other features. It costs $35 per year.

Showbiz.com
Offers web-based e-mail accounts for yearly fee with personalized address books.

Plug-in email systems
Plug-in email systems for businesses, web sites, and educational institutions.

Yahoo! Mail
This is a full-featured service. Speedy download. May be difficult to get preferred username, due to popularity of the service.

VolcanoMail.com
A free e-mail service that offers web-based email accounts, spam blocking, and attachments.

Another.com
Over 6000 domains to choose from. It has many unique features including letting you have up to 20 addresses all operating from the same in-box.

Mail.CHEK.com
MailCHEK specializes in custom e-mail templates for brands, companies, and organizations.

Mac.com
Fee-based service, pay for a year at a time. Email, web storage, offsite virtual hard drive, various free tools and files. 60-day free trial available.