SETIcon 2010
"SETIcon brought together noted scientists, science fiction writers, science pundits, amateur astronomers, teachers, and hundreds of people with an interest in the question of life beyond our planet."

Seti Instititue has uploaded all the lectures from SETIcon 2010 to youtube:

Was Hawking right? Should we not broadcast to extraterrestrial Civilizations?
One of the Speakers is Robert J. Sawyer, one of my favourite SciFi authors.

Star Trek Science
What's right and wrong with cinema Sci-Fi?
The Femi Paradox: Why are there are no tourists from other worlds?
Dark Energy and the Runaway universe
Asteroid armageddon The Future of Spare Travel How I Killed Pluto Images of Scientists and Extraterrestrials in the Popular Media

Singularity Summit 2011
"In his influential 1993 article the coming technological singularity, Vernor Vinge discussed the possibility that future technology could feed on itself, causing an "exponential runaway" in technological progress: "Developments that before were thought might only happen in 'a million years' (if ever) will likely happen in the next century." In his 2005 book, The Singularity Is Near: When Humans Transcend Biology, inventor and futurist Ray Kurzweil used current exponential trends in technology to predict the arrival of this Singularity in the next few decades." Read on

Stephen Wolfram - Computation and the Future of Mankind Ray Kurzweil - From Eliza to Watson to Passing the Turing Test Christof Koch - The Neurobiology and Mathematics of Consciousness

All lectures from 2011, 2010 & 2009