Here’s the page for American Pilgrims: http://www.americanpilgrims.org/
Here’s the page for the British Pilgrims: http://www.csj.org.uk
They also have a Facebook group worth joining. https://www.facebook.com/groups/AmericanPilgrims/
Here’s the page for the bicycle rental company that I used. https://www.tournride.com/en/
Here are some other bicycle rental possibilities: http://www.mundicamino.com/servicios-alquiler-de-bicicletas.cfm
http://bicigrino.com/en/bicycle-rental
http://www.bikeiberia.com/rentals.html
Here’s a website for the Dintaman Landis guidebook. GPS tracks are here to download. http://www.hikingthecamino.com
Here are links to the Wise Pilgrim apps for Smartphones: http://www.caminoapp.com
This is a terrific planning tool that will allow you to build a tentative itinerary with dates, distances and vertical profiles: http://www.godesalco.com/plan
Camino discussion forums and where to leave luggage in Santiago: https://www.caminodesantiago.me/community/
British Pilgrim’s Association: http://www.csj.org.uk/
If you fly into Madrid, you can take the train or bus to Pamplona and stay at this Albergue. They will drive you to Saint Jean Pied de Port the next day. http://www.corazonpuro.es/Enghome.html
Pilgrim House is a resource for Pilgrims in Santiago: http://pilgrimhousesantiago.com/about-us/
Before you purchase any train tickets, here is the best information on using trains in Spain and pages for the rest of the world as well: http://www.seat61.com/Spain-trains.htm
Tangonomad 