Calculation Tools:

Der Profi Ritzelrechner   http://www.trainingsplan.com/tools/gears.php

Quäldich (mountain passes)   http://www.quaeldich.de/

Media:

CyclingNews   http://www.cyclingnews.com

Bike - Germany   http://www.bike-magazin.de

Bike Sport News - Germany   http://www.bike-sport-news.de

Mountainbike-Magazin - Germany   http://www.mountainbike-magazin.de

Pro Cycling - Germany   http://www.procycling.de/

Radsportmagazin RennRad - Germany   http://www.radsport-rennrad.de/

Radsport News - Germany   http://www.radsport-news.com/

Tour - Germany   www.tour-magazin.de/start.html

Mountainbike - USA   http://www.mountainbike.com

PezCycling News   http://www.pezcyclingnews.com/

Slowtwitch - USA   http://www.slowtwitch.com/

Velo News - USA   http://www.velonews.com/

Training:

Radlabor - Germany   http://www.radlabor.de

STAPS - Germany  http://www.staps-online.com

Trainingsplan Software - Germany   http://www.trainingsplan.com/

Trainingstagebuch.org - Germany  http://trainingstagebuch.org

XP Sport Gmbh - Germany   http://www.training4cycling.com

Paul Köchli´s trainings software - Switzerland   http://www.powercoach.ch/

2Peak - Switzerland  https://www.2peak.com

Athletes Performance - USA   http://www.athletesperformance.com/

TrainingPeaks - USA   http://www.trainingpeaks.com

Sport Federations:

Tour de France - France   http://www.letour.com/

BCA - Great Britain   http://www.bcf.uk.com/index.html

BDR - Germany   http://www.rad-net.de/

DTU - Germany   http://www.dtu-info.de/

Swiss Olympic - Switzerland   http://www.swissolympic.ch/

IMBA - USA   http://www.imba.com/

UCI - Swiss   http://www.uci.ch/

USA Cycling   http://www.usacycling.org/

USA Triathlon   http://www.usatriathlon.org/

Travel:

Diro Radferien   http://www.diro-radferien.eu

Guido Eickelbeck   http://www.lifestyle-cycling.net/

Barbara Tesar   http://www.3t-active.com

Photographers:

Gero Breloer   http://www.gerobreloer.com

Elisabeth Kreutz   http://www.elizabethkreutz.com/

Kai Stuht von  Neupauer   http://www.kaistuhtvonneupauer.de

Hennes Roth   http://www.roth-foto.de

Tim De Waele   http://www.tdwsport.com

Peter Witek   http://www.peter-witek.de

Technology:

Radlabor - Germany   http://www.radlabor.de

Spoteo.de - Germany   http://www.spoteo.de