Cataloging the technology platforms behind leading open data sites

Before embarking on an effort to build a great new opendata app/feature/distribution of Drupal, here's a spreadsheet we can use to catalog what technology platforms are used for leading existing open data sites already; please add to it!

https://spreadsheets.google.com/ccc?key=0ArCIrNfY8gf8dHZOR0hKdmFuN1o5dTN...