MarioMax writes: I've recently acquired several (3-5 year old) desktop computers from various family members. They are far from the latest and greatest machines, but they do a good enough job for checking email and playing web-based games. The problem is that I have no personal use for them, and other members of the family have no use for them either. It seems a shame to send them off to a recycling center when they're still perfectly servicable. What should I do with them?