EventsApp - A simple concise app for creating and sharing events.
Lunchclub - Curated 1:1 professional connections
Event Hunt - Startups and Tech Events Curated By Locals
Serendipity - Serendipity is a PHP-powered weblog engine which gives the user an easy way to maintain a blog.
Calendify - Calendify is an event community where you can share, publish, and subscribe to event calendars. It helps you to stay informed about what you are interested in and what is yet to come.
Coworker Coffee - Coffee with a different coworker each week