Typophile Advanced Search is great. There are some information about the development of the pilcrow in this past thread.

Thanks for digging up that link, Eduardo.

The Pilcrow is a great character to get creative with. The one thing to keep in mind though is this: it might seem intuitive to make it match the color of the alphabetic characters in the font, but this ruins its functionality. The Pilcrow has to be dark to work right.

hhp

In spanish it�s called "Calderon"