...some useful links I use frequently, can recommend or are simply worth a look:

iRunFar ...ultramarathon and trailrunning news
Trail Magazin ...read all about trail running
CrossFit Murstadt ...when a little squat strength might help your running
Salomon Running...footwear, clothing, packs, accessories,...
Julbo...eyewear of my choice
Suunto...not only a watch

WUSA On The Mountain ...blog for mountaineering, trailrunning,...
Ciele Athetics ...just a cap ;-)
BioHacks ...a blog of Marcus Fink collecting ideas of us runners how to get the "most" out of us
PetzlRunning ...if you need to find your way; either early morning or late in the run or both togehter
Sporthunger...sport makes you hungry, hungry about sports