I've studied German in an academic setting in the US for a number of years. When conversing with native German speakers I've noticed slang and other "non-academic" mannerisms. I'm preparing to travel abroad to Germany and I'd like to hear/see native speakers for exposure to slang and other language nuances not encountered in academia. What online resources would you recommend?
Please keep in mind that I'm interested in current slang/nuances used frequently by 20-30 years old native German speakers.