Strong Brain links for Mental Agility

Enchanted Mind - Building a Better Brain
  -- Discusses brain health and activity
Long-term Effects of Cognitive Training
  -- "Major study (the ACTIVE study) shows cognitive training has positive long term benefits. (PDF version here)"
Bingo 'boosts the brain'
  -- BBC report of research on mental agility effects of bingo
Summary: Long-term Effects of Cognitive Training
  -- "Summary of the ACTIVE study (next item). Another summary here and here."
MetLife Foundation Mind Alert Awards - 2006
  -- ...established to recognize innovations in mental fitness programming for older adults.
How to run brainstorming sessions
  -- "Discussion of the ""classical"" brainstorming process"
BrainSparks Mental Agility Training
  -- Singapore firm developing Mental Agility Courses
The Human Brain - Exercise
  -- Good overview and references on maintaining mental fitness
Brain Building: Pumping Iron Mentally: Mind Over Matter
  -- Discussion of the value of mental strengthening activities
Test your mental agility - Maintaining Your Memory
  -- An interesting exercise
Meditation builds up the brain
  -- Report of a study
Test Your Mental Agility
  -- A clever exercise
"ScienceDaily: Use Your Brain, Halve Your Risk Of Dementia"
  -- Report of a study from Psychological Medicine
Calisthenics for aging brains
  -- Report on S.F. firm develops software to improve mental agility
Urban Challenge tests runners' mental agility as well as speed
  -- ….combines a road race with a scavenger hunt -- almost like a 10K for brainiacs.
Preventive Maintenance For the Brain
  -- Report of a NIH review of studies on exercise and mental fitness