Chatzy is a good alternative to Facebook, Skype, Windows Live, and other messengers because:
Chatzy has no registration steps - your friends can join instantly
Chatzy is free and has no popup ads
Chatzy does not require Flash or any installation on your computer (= no spyware)
Chatzy works on all major browsers, with any language and through corporate firewalls
Chatzy is simple and easy to use
Chatterous is group chat combining the web, im, email and your phone.
Once you create a group, you can chat with your friends through im, email or your phone. No need to use the website!
Your friends don't need to sign up to chat with you! They can reply right on their im, email or phone.
# Create an inbox with message and add recipients.
# You and all recipients receive an email with your message and a link to the inbox.
# Participants may reply to any message in the inbox using browser or email.
No Java, no flash. With Mibbit, chatting online is easy, just choose your nickname and press go! No sign-up is required and you can use it from wherever you are with just a web browser.
Your visitors don't have to sign up again. They can carry their existing profile information and sign in using their Facebook, Twitter, OpenID, WordPress or Joomla accounts. Donut can also connect with any other third-party application using the API.
Donut works great on the iPhone, iPad and iPod touch. The interface is completely customized in order to match the usability standards set by these mobile devices.
Donut lets you share files, photos, videos, documents, music and other files instantly in a room or a private conversation. Image preview appears right up in the chat so you can discuss it with others around. Users don't have to leave the chat to watch a YouTube, Vimeo or MetaCafe video. It appears right inside the chat.