[Evolution] Online Sync/backup of Evolution Contacts?

[Ng Oon-Ee <ngoonee gmail com>]

Hi all,

Does anyone know of an online contact management service which can sync
bidirectionally with Evolution Contacts? Google contacts works well, but
I find that adding new gmail addresses tends to mess up my google talk
contact list. Scheduleworld is subscription-fee based, while I've been
unable to figure out whether soocial is or is not supported.

So, any ideas?