Here are a few links we have found useful, and might be of value to you:

 

Runways

 

 

Bikes:

 

Specialized Bikes (U.K. & Ireland site)

Cannondale Bicycles (U.K. & Ireland site)

Electra Bikes

Brompton Bikes

Mezzo Bikes

Kellys Bikes

Claude Butler Bikes

Charge Bikes

 

 

Groups:

 

AllMountainExperience.com

Biking.ie

Irish Cycling

 

 

Brands/Parts:

 

3T
Blue Seventy
Brooks
Campagnolo
Cateye
Chrome
Continental Tyres
Craft
Crank Brothers
Evervit
Fizik
Garmin
Genuine Innovations
GoPro
Gore
Hamax
Hollywood
Knog
Kryptonite
Look
Mavic
Miche
MKS
Niterider
Oakley
Ortleib
Polar
Park Tools
Pedros
Profile Design
Respro
Schwalbe
Shimano
Sigma
SKS
SRAM
Tacx
Thomson
Time
Tortec
Trelock
White Lightning