working with templates is good but their numbers should be increase i suggest working on the chat messenger boost its ui lovely landing page though!! ;)
I like working with its panel
Google Calendar - Spend less time managing your day & more time enjoying it
Conceptboard - Instant Whiteboards for Teams & Projects
Mixmax Calendar - The fastest way to schedule meetings with anyone, anywhere
OpenBoard - The OpenBoard software is an interactive white board software.
Sunsama - Calendar and scheduling for teams
Witeboard - A real-time whiteboard for your team. No signups required.