http://blogs.forbes.com/oreillymedia/2011/02/10/issuemap-org-a-citizen-generated-mapping-tool-from-the-fcc-and-fortiusone/"IssueMap is a project byt the FCC and FortiusOne to make it easier
for citizens to create their own maps and share them widely. The
process is super simple. You just need a spreadsheet or table of data
that references a commons geographic boundary and a set of values you
would like to map to those boundaries. Follow the simple two step
process and you’ll have a thematic map you can share across you social
networks (Twitter, Facebook, email) and your audience can grab the map
as an embed, download an image, grab the map as KML or get the raw
data as a .csv." - from FAQ
http://issuemap.org/-Glen
--
-