Dota 2 and Space Stuff. And Random junk!
If you have not checked it out yet, here are the top 20 TED Talks (Most Viewed).
For those who don’t know what TED Talks are ; They are short speeches given by enthusiastic and profound speakers who convey a message or present a technology or an issue so that the general audience understands and assimilates it. TED Talks can be of any topics from computers, happiness to space and schizophrenia. It deals on a very wide range of topics. If you have not watched any talks yet,start with the Top 20 and then follow the talks regularly on their official website.