Rowing machines:  
DK - Fitnesgruppen  
Rowing - Books at Amazon  
Rowing clubs:  
DK - All rowing clubs  
SE - All rowing clubs The offical site of rowing in sweden. Only problem, its in swedish, just a tip go to to translate it!!
DK - DFfRs hjemmeside hvor der også er mange gode links
IT - Well the site is in Italian. But its italy's offical rowing site.
NDL - Nederlands Not the official, but definitely the most visited rowing site of the Netherlands (in Dutch unfortunately)
CA - Canada Canada's national rowing organization
World - World  
SP - kayakingcostabrava Costa brava, L'Escala, Girona
DK - Ontop Køb salg i kokkedal