Some tools for deep web work great, other tools OK. Occasionally, you'll find a tool that does wonderous things, and today we've found one.
It is called Touchgraph, and it shows relationship websites clustered together. http://www.touchgraph.com/seo/launch?q=solar%20power
Using this tool, we've located new deep web assets for several of our projects that we were missing before. Do give this tool a look over.