John Mueller of Google who does the vast majority of the webmaster hangouts, especially the English ones, posted on Google+ posted several topics of choice for the last Google webmaster hangouts of the 2015 year. He wants you to go to Google+ and +1 the topics you find most interesting and he will cover what he can by the end of the year.

John wrote:

Here are the topics he posted:

JavaScript sites
Page speed, wrooom
Îñţérñåţîöñåļ sites / hreflang
What’s up with mobile, AMP, & App-indexing?
Crawling & indexing
Only live questions from new participants
Featurephone ranking with JSON-LD GIFs
etc and add your own

So go ahead, here is your chance to give your input on this excellent hangouts!

Forum discussion at Google+.