Skype is free for computer to computer video and voice communications over the internet. Skype is also great for simply passing message between people or groups. Simply find the person, click in the text box and type your message. When the receiving party comes back to their computer, they will see a notification on the task indicating a message waiting.
Turn on the data/time stamp feature and you will have a running log of whom said what and when.
Drag and drop an images or files to the text box and the distant end will see a notification to accept the pending file. Once acknowledged the file will be on its way..
Those of us involved with multiple business ,with multiple websites, will find it impossible to put all that information on a single business card. That gave me the idea for a multiple business hub site.
The idea of having a single website pointing to all your other business websites. Then, you only put one URL on your business card.
My hub site is at www.billyghawaii.com