Mindfulness, What It Is and Isn't: Joseph Goldstein
This is a guided vipassana meditation and lecture from Joseph Goldstein, a senior teacher at the Insight Meditation Society. The first 20 minutes is a guided meditation; the next 40 minutes is a lecture on mindfulness; and the rest is a question and answer time. Goldstein defines mindfulness as "observing present experience, free of any filters" (41:30). This is sometimes stated as "non-judgmentally" observing present moment experience.
The Progress of Insight: Jack Cornfield
This is a podcast discussion with Jack Cornfield, also a teacher at the Insight Meditation Society. He begins by talking about various interpretations of Enlightenment or Awakening and at 10:19 discusses Insight Meditation specifically, especially in regards to what can happen with prolonged practice. This is a fascinating longer talk about insight meditation and how it relates to other practices and Buddhism as a whole. Jack Cornfield was trained as a Buddhist monk in Thailand, India, and Burma.
The Three Marks of Existence
This is a very brief video that discusses the Three Fundamental Marks of Existence – unsatisfactoriness, impermanence, and no-self – from a Buddhist perspective. Vipassana/Insight meditation is supposed to help the individual experience these aspects of reality.
60 Minutes on Mindfulness
This is a 60 minutes feature on Mindfulness. Jon Kabat-Zinn is a very well known teacher in the mindfulness movement, but it's unclear if he has had any formal training in any tradition. The way Kabat-Zinn describes mindfulness meditation as "bringing your mind back to the breath" is a preliminary exercise in mindfulness and not truly the full vipassana technique. There's no discussion here about "open awareness" or "non-judgmentally observing your present movement experience" (i.e. noticing bodily sensations and thought patterns). This haziness in method is chronic in the mindfulness movement and even prominent teachers may mean different things by the term. Teachers from the Insight Meditation Society are probably the gold standard in teaching the true vipassana technique.
Mindfulness Meditation and the Brain: Shauna Shapiro
There is a ton of research being done on how Mindfulness Meditation can affect the brain. Here Shauna Shaprio shows the correlation between vipassana meditation and feelings of happiness. Mindfulness Based Cognitive Therapy (MBCT) and Mindfulness Based Stress Reduction (MBSR) are growing interventions used in counseling psychology.
Mindfulness is a Superpower
This is a very short video showing one possible benefit of mindfulness meditation. This is narrated by Dan Harris, who wrote a book called 10% Happier about his experience with mindfulness meditation.