SoChat - Chat with everyone
SendLater - Email scheduler for Mac Mail.
Ablo - Say hello to the world
Assistant.to - GoToMeeting. Put your GoToMeeting link in the Assistant. to "Location" field. Once the recipient selects a time, you will both receive an invite with a unique GoToMeeting link.
chitchat - Chat Room with Selfies and Pagers (yes, pagers!)
Shortwave - Email smarter & faster with a reinvented experience for your Gmail