Have you looked to see if amCharts or HighCharts offers something like this?
Thanks! HighCharts was my first stop, but didn't appear to have something. Will check out amCharts next.
Didn't see anything on amCharts.
For what we want to use it for we need to be able to plot multiple points per line. In one case it's a faculty member with multiple areas of research, in another it's a course listed across different curricular "clusters" -- each course listed in two of six areas.
Bubble flex chart might work
Checking this out next: http://d3js.org/