As a technical advisor to virtual assistants, I often get asked “I need to share contacts and setup appointments for my clients. What is the best software for sharing contacts, calendars, tasks and files?”

There is no easy answer to this question - especially for clients on a tight budget.

Wouldn’t it be nice if shared hosting companies offered web hosting AND an application that allows email users to share contacts, calendar, and to-do tasks with other email users of that system - like an assistant?

It is very hard to find.  Most hosting companies have Horde installed, but the features above are for personal use, not collaboration.