Personal tutorial: Dissolving an Object into Particles

I've always thought this was cool, so I'm learning how.  Tutorial: link

There are still some adjustments than need to be made to the particle rate so that they particles only flow exactly at the edges, but apart from that, it seems to have worked out well.  The texture emission attributes, with an ability to have the particles to inherit the color, and to have particle flow position and rate affected by the texture given, allow for realistic dissolution.

Here's a sample of what this looks like.