Another good resource is Seven Experiments That Could Change The World, especially the termites chapter. Sheldrake is certainly near to the nutcase end of the spectrum, but even if only a tenth of the stuff he talks about (and gives references for) is true, it's still pretty amazing.

Also read the chapter about the variability of fundamental constants: you don' t have to buy the theory that there is genuine underlying variability in order to appreciate the discussion of psychological factors in "hard science" results about those constants (specifically, scientists not daring to differ too much from eminent scientists' previous results).

Peter