If No Reply - Simple email automation that works for Gmail
CoffeeRun - Let everyone enter their order for coffee runs
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.
QuizBreaker - A fun online quiz game for teams to get to know each other
SendLater - Email scheduler for Mac Mail.
Lunch Roulette - Collaboration by grouping coworkers randomly for lunch.