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.
Moqups - The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project
Upcoming.org - A simple way to share and discover interesting events
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
Colloq.io - Discover a new way to the conferences you like.
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.