I am sure this has been asked before - it would be incredibly useful to have multiple addressbooks, and not just categories (which are great as well). The reason for this request:

On my mobile I also have the LinkedIn app, and LinkedIn populates those contacts in to my phone addressbook - this is great for sending emails/making calls from my phone. 

However, when I use the web app, I cannot access LinkedIn contact info, so I'd like to download my contacts from LinkedIn and have them available on the web app, but able to NOT synchronize them via carddav to my phone or other addressbooks, because if I add them to my single Zoho addressbook, even with a unique category, this creates duplicate entries on my phone and other apps that can access LinkedIn directly which is a pain. 

Either of the following approaches would work for me.

If I could put them in a second personal addressbook on Zoho, I could choose whether or not to sync them to any client via carddav and thus avoid duplicate entries. 

The other way to fix this would be create a separate addressbook via a group (doable today) etc. AND make that addressbook available via carddav and searchable when creating an email.  Either approach works for me.

I know I have to maintain the LinkedIn contacts manually, but this is OK, I appreciate its LinkedIn that's refusing to work well with others, and thus am not asking for a direct LinkedIn addressbook.

Thanks

Alan