Email Services
Gmail , Mail.com , Yahoo! Mail , GMX Mail , FastMail , Hushmail

Electronic mail (email or e-mail) is a method of exchanging messages ("mail") betwee ...

Instant Messaging Services
Facebook Messenger , WhatsApp , Pidgin , iMessage , Telegram Messenger , BlackBerry Messenger , Slack

Video Telephony and Chat Services
Google Hangouts , Tox , appear.in , FaceTime , AnyMeeting , Microsoft Teams

Videotelephony comprises the technologies for the reception and transmission of audi ...