Assuming owncloud is required, the following results were found.

Adventures in synchronisation volume 3 - Files and Stuff
Having established an ownCloud synchronisation framework to share my contacts and calendar between devices, it makes sense to see what other things I can do with it.
Adventures in synchronisation volume 1 - Address book
Although my primary computer has a perfectly acceptable address book I regularly want this information on one of my other devices (tablet, phone other computer, etc). My case might be a bit extreme in terms of the number of devices I use, but the basic...
Adventures in synchronisation volume 2 - Calendar
Synchronising calendar details across multiple devices introduces some additional complications beyond the requirement of static data such as contact details.

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