Emoto's findings are interesting, though he has been criticized for vague methods in his scientific experiments.
Here's what wikipedia says about mr. Emoto and his research:
Commentators have criticized Emoto for insufficient experimental controls, and for not sharing enough details of his approach with the scientific community. In addition, Emoto has been criticized for designing his experiments in ways that leave them open to human error influencing his findings.
Personally I find it intriguing what Emoto's work suggest.
[edit on 30-10-2009 by v01i0]