messaging service

CalendarCreator.service add events to iCal with ease.

Know how much to tip.

Free voice, video, and messaging service.

Native OS X desktop client for the Yammer messaging service.

Messaging platform for professionals (was TeamASAP).

Messaging app for VK.

Messaging client that supports Hangouts/Gtalk and XMPP.

Messaging & chat network app.

Business messaging reinvented.

LAN instant messaging.