What is futurism/futurology? Articles on the subject and practice:

• Futurist (definition) and Twelve Common Types of Foresight Thinking
• 'One needs to be humble in designing the future' - interview with Mark Turrell
• Futurists as Crystal Ball Gazers? Maybe to Lazy Bloggers
• "Trust Me on This One—I'm from the Future!" Confessions of an Accidental Futurist
• What It’s Like To Be A Corporate “Futurist”
• Train Your Brain to Think Like a Futurist in 2014
• I Want Your Job: Futurologist - Interview with Ian Pearson
• Futurist (definition) and Twelve Common Types of Foresight Thinking

Professional organizations:

• World Future Society
• Copenhagen Institute for Futures Studies
• Foresight Institute
• Institute for Alternative Futures
• Institute for the Future
• Institute for Ethics and Emerging Technologies
• Journal of Futures Studies

Weblogs:

• Next Big Future
• Overcoming Bias
• Popular Science
• Wired: Danger Room
• Singularity Hub

Books, DVDs and Materials:

• New Thinking for a New Millennium: The Knowledge Base of Futures Studies (Futures and Education Series)
• William Gibson - No Maps for These Territories
• How William Shatner Changed the World
• Are We Creating the Future by Predicting It?

University Programs:

• University of Houston
• Ontario College of Art and Design

Other:

• Wikipedia overview of futures studies
• Blogrank's top 25 future blogs
• DMOZ list of future organizations