Openkapow's robot tool is designed to work in Windows and Linux.  Because OSX is UNIX at its core, I thought I would download the Linux version and see if I could install it.  No joy.  It threw errors in the command line.  It would be nice if they would port it to MacOS.

Today at work, I installed the tool on my Windows work station and started messing around.  The idea is that you create "robots" that aggregate, manipulate, and display data from other sites.  You can create specialised RSS feeds, clips (that display visual data), and REST robots (that apply rules to data).