Question: Though this would be limited to Geneva, I would be interested to know where to buy organic products here
My answer: 
Here are a few online and offline hints of where to go in the USA, UK, as well as France and Switzerland. Feel free to let me know if you know of other good links

Online sources of information include
For the USA
http://www.wholefoodsmarket.com/
http://www.naturalgrocers.com/

For Online Organic food delivery in the UK
A comprehensive listing of companies offering organic food delivery – locally and nationwide.
http://www.aboutorganics.co.uk/
http://www.ecobusinesslinks.com/organic-food-restaurants-farming-gardening/
http://www.abelandcole.co.uk/

Local sources in Geneva, Switzerland and (neighbouring) France include
Alna Diététique & Bio, rue de Cornavin 3-5, 1201 Genève – 022 738 1028
Espace Santé/Bio-Servette , 3 route de Meyrin, 1202 Geneva – 022 733 8708
Le marché de vie, 25 rue des Eaux-Vives, 1207 Geneva – 022 735 44 34
http://www.lemarchedevie.ch/
http://www.ferme-de-bude.ch/
Satoriz , 2 rue René Cassin – ZAC de la Chatelaine 74240 Gaillard, France – +33 450 94 20 49
Satoriz , 31 rue Voltaire, 01210 Ferney-Voltaire, France – +33 450 407862
Satoriz , Z.A Pré de Fontaine, 01710 Thoiry, France – +33 450 99 14 94
http://satoriz.fr/
La Vie Saine », 5 rue des Esserts, Annemasse, +33 450 84 2841
http://www.biocoop.fr/
LACOMBE traiteur Au deux portes, Rue Schaub 10, Geneva 022 734 11 22
Supermarkets in Geneva and other parts of Switzerland
e.g. Coop, Migros, Manor, Globus
In the German-speaking part of Switzerland
http://www.reformhaus.ch