I'm wondering if there are any guides out there that list how subfolders should be structured for Internationalization? The first language/location that I'm targeting is Portuguese in Brazil so should my folder structure be: www.example.com/br/pt/ or www.example.com/pt-br/ I did find the guide below but was wondering if there was perhaps anything from Google? http://www.lingoes.net/en/translator/langcode.htm

If I were to start creating individual pages for things such as webinars or other resources for our visitors to consume would I be running the risk keyword cannibalization? The webinars cover topics around our products and services so my fear is that the content might compete with our product and service pages. I noticed here at moz that each webinar does not have it's own page and just links to the registration page (https://moz.com/webinars).

Every year our company has a user conference with between 300 - 400 attendees. I've just begun giving the event more of a presence on our website. I'm wondering, what is the best way to handle highlights from previous years? Would it be to create an archive (e.g. www.companyname.com/eventname/2015) while constantly updating the main landing page to promote the current event? We also use an event website (cvent) to handle our registrations. So once we have an agenda for the current years event I do a temporary redirect from the main landing page to the registration website. I don't really like this practice and I feel like it might be better to keep all of the info on the main domain. Wondering if anybody has any opinions or feedback on that process as well. Just looking for best practices or what others have done and have had success with.