Flow-e is a visualization layer on top of your Gmail or Outlook inbox. It provides an elegant Kanban-like workflow that's combined with the ideas behind Inbox Zero and GTD. Flow-e eliminates the need of external task management tools and transforms your inbox into a central To Do app.
ABBYY Business Card Reader - Scan cards ≡ in a second and manage them everywhere ☁
Sortd - Rated the #1 App for Gmail
MakeBizCards - Easy to use web-app for designing your own business card.
Drag for Gmail - Transform Gmail into organized To Do lists (like Trello)
Business Card Maker - Customize Business Card templates online
KanbanMail - A Kanban board for your emails.