As a Partner with Akrura Technologies we are promoting the Free SharePoint Pie Chart Sandbox WebPart Solution created by Akrura Technologies.
Check out this dynamic webpart which can be installed by anyone who knows a bit of SharePoint.
Some of the Features that i would like to discuss are –
* Its a Sandbox solution that works well with SharePoint 2010 and SharePoint Online.
* You can setup ListName, ViewName and ColumnName as WebPart properties.
* Beautiful Pie Chart effects to displays overall count and percentage of columns like status, task status, approval status etc.
Check out the free Install Document and webpart solution (wsp) from ->