I have here a picture of what the tags for the Hope Meter project could look like.  As a quick reminder for someone who wandered onto this blog, the idea is that items would be rated according to whether they make the user feel more or less hopeful.  In this case, I have given positive-rated items a blue color and negative ones a red color.  The spectrum of things tagged would in most cases result in some shade of purple, assuming that most pages tagged would be a mixture of positive and negative things.   I think if you look at the example you'll get a better idea of what I am saying.

 Please remember that this is only an example and not neccessarily  representative of my personal opinions.  

Here's the link for a larger picture: