Since I posted the previous version of the solution that utilizes the Google Chart Tools / Interactive Charts (aka Visualization API), Google has updated their API and made the previous version more or less obsolete.

This is a solution for creating charts directly from SharePoint lists using Google Visualization API.

Christophe Humber from Path to SharePoint continues to work on SharePoint interface enhancements. In next week’s live online workshop, SharePoint Charts and Graphs Part 03, he’ll deconstruct Gantt Views and enhance them with color coding and sliders.
The three solutions he provides in the workshop are critical pieces missing from the default Gantt Views: the ability [...]

With the techniques Christophe is developing for presenting HTML data in a calculated column, this looks very useful. I like the idea of exposing the information along a timeline to get a quick, visual reference as to the timed location of an event.

Most organizations have been using Excel to do analysis, create charts and design dashboards for years, yet there is a lot of functionality in Excel that is not easily accessed in SharePoint, sometimes even for those with Excel Services. The question becomes, how does one translate their work from Excel to SharePoint? This means more than linking to an Excel workbook in a Document Library; rather, it requires displaying the charts and dashboards directly within SharePoint.

I had already found the post http://www.endusersharepoint.com/?p=1537 then created a new page and added the task list as a web part then added the content editor web part including the code for the pie chart. I had previously downloaded the JQuery file from the links and have added that to my top-level site collection that all subsequent sites have access to and can reference.v