This year’s IGF is being held in Mexico in Guadalajara.
While the official site for the IGF is maintained by the UN here and will probably be the main destination of any attendees, the local hosts usually put together a site with pertinent information. This year’s site is now live.
At the moment the site provides some details about the venue, but little else.
The 2016 IGF isn’t on until December, so there’s still plenty of time to get information!