Zoho Chat – Web based Chat
Zoho Chat is an online web based instant messaging service. It doesnt require any download/installation and is 100% free. With Zoho Chat you can very well perform Group Chat, archive the conversations for future reference and even share the conversation with other members.
There are many other web based chat services available. Some of them include Meebo, ILoveIM, Mabber, eMessenger, MessengerFX, Wablet, Goowy, Imunitive, RadiusIM, Vicito, KoolIM(I blogged abt this here)
BTW Zoho offers many other services as well. Do check it here.