Gmail
Gmail is a free e-mail service that is run by Google. It can be accessed on the web, by POP3, or by IMAP. Some of the competitors to Gmail are Yahoo! Mail, Hotmail/Windows Live Mail, and Inbox.Com. The space given to any Gmail member is increased a small amount every second, and as of July 26, 2012, Google provides each account with about 10272 MB of space.