Statistics

• Open Data Repository der Statistik Stadt Zürich
• Office fédéral de la statistique

Geo & Transport

• Federal Geoportal - (English, French ) -API docs
• geocat.ch - Swiss Geographic Catalogue
• SBB API, semi-official, see http://pastie.org/1617103 for usage
• SITG: Système d'Information du Territoire Genevois: the data dictionnary & topic specific data 2D/3D desks
• BADAC Datenbank über die Schweizer Kantone und Städte
• Schweizer Postleitzahlen - PLZ-Verzeichnis

Environment

• Wassertemperaturen von Schweizer Flüssen
• Data API on Pachube (by Danilo)

Society & Politics

• Befreite Dokumente (www.oeffentlichkeitsgesetz.ch)
• Web Services of the Swiss Parliament
• api.politnetz.ch (you can use this token: opendata. And do not hesitate to contact us if you are interested in different data)

Also: have a look at the CKAN make.opendata.ch repository.

• Planet Data
• PublicData.eu
• List of European data catalogues
• Open Data Ireland
• Open Gov't Data UK

• CKAN.org
• Data.gov (USA)
• Open Data Hubs worldwide (buzzdata)

• Pachube
• InfoChimps
• Data Marketplace
• Factual

• NYC.gov/data - New York City
• dataSF.org - San Francisco
• data.wien.gv.at - Vienna
• daten.berlin.de - Berlin, Germany (apps )
• data.london.gov.uk - London, UK (apps )
• opendata.paris.fr - Paris, France (apps )
• toronto.ca/open - Toronto, Canada (apps )
• montrealouvert.net - Montréal, Canada (apps )