I don't really debate much these days (online or in general) but I still think about a lot (as we all do) daily, and like to venture in to study when I have time.
These few resources in particular are ones that I used to habitually check as they're packed with tons of interesting content and thoughtful people talking about thought-provoking things...
BigThink
This site is a particularly interesting database of videos and articles on some of the most potentially deep ideas the mind can conjure up. A brilliant space of and for thought.
Charlie Rose
I'm sure many of you have heard of Charlie Rose - he's an American interviewer but his interviews are not tacky talking points or promotion spots for people; they're real discussions. Charlie isn't as intellectual as many of the people he often has on, but he quite clearly makes every genuine effort to delve and discuss in very honest ways. This is a great place to search up some fascinating interviews with some of the world's best minds. I wish Em would go on.
(PS. I particularly recommend his interviews with Dawkins, Hitchens and Tarantino!)
TED (Technology, Entertainment and Design)
This is a very interesting resource and idea as, TED is like a platform (not simply a resource of) for ideas. They regularly give prominent thinkers and even left-field but worthwhile thinkers in any given field a stage to present ideas, theories and discussions. This place is a goldmine.
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There are plenty of resources out there with lots of brilliant articles and media discussing and delving in to all the great ideas we like to discuss, just thought I'd share these for anybody who hasn't heard of them or doesn't visit them; I think you'll find a lot of worthwhile stuff within.
Anybody who has any interesting resources like these that have content that inspires debate or is good food for thought, please share!