What's in a good laugh?

What makes you laugh? Why do we laugh? Are there things that make you laugh that you're a little you're a little embarrassed to admit? Is there a cultural impact on what we find funny?

We'll get together and dissect laughter and hopefully have a few laughs doing it! Here's a few links to resources to get the discussion going. Please post more articles or videos on the subject in the comment section.

Psychology Today article "Can We Compare New and Old Theories of Laughter?"

Sophie Scott's Ted Talk on Laughter