The C++ conference 2014 has made available lots and lots of interesting seminars and talks at YouTube,

http://www.youtube.com/user/CppCon

If you just watch one I would recommend this by Herb Sutter,

http://www.youtube.com/watch?v=xnqTKD8uD64

It's so essential for anyone who want's to get started with "modern" C++ (like myself).