Anyone with a fast internet connection should have a bookmark to TED talks. Here is a link. TED is an organization (Technology, Education, and Design) which sponsors conferences at which major idea-people get together and offer short lectures or performances. You can watch anyone from Bill Clinton to Stephen Hawking to Jimmy Wales (Wikipedia) to Jane Goodall to Daniel Dennett, etc. “Ideas worth spreading” is its tagline. Watching a couple over a week, during lunch, or during a 20-minute down-time, really gets you thinking about many new and exciting possibilities.