Currently, the NHC is probably the best Irish on-line resource for all things homebrewing: http://nationalhomebrewclub.com, with lots of great discussions and a focus on active homebrewing clubs throught the island. Unlike other boards which are full of biased spammers, you won't get kicked off for speaking your mind. The administrators have a genuine interest in brewing and are neutral and you will get the real deal on homebrewing. Its an active community of brewers where everybody kinda knows everybody else. And they have dedicated threads that allow individuals and suppliers to post offerings and exchange goods etc. Even free delivery throughout Ireland can be organized !
Another great forum is http://www.beoir .org which focuses on homebrewing and speciality commercial beers. They have a "Market Square", and the admins are also neutral, so you will get real unbiased info here too.
http://www.jimsbeerkit.co.uk is a UK "equivalent" and a great resource for info on all things brewing. They too have a "Bargain Bucket", and the admins are also refreshingly neutral, so you will get real info here too. Its just bigger!
http://www.coopers.com.au/ for all things Coopers. HBW represent them here, so get in touch if there is anything we should be stocking from down under . . . .
http://www.muntons.com/homebeer/default.asp have only three distributors in the UK and Ireland, including HBW.
http://www.hambletonbard.com/ are represented by HBW in Ireland.
http://www.brewferm.be/en/index.htm is a great resource for all beer brewers. Also represented by HBW (see distributor links).
http://www.brouwland.com/en/ are the biggest homebrew suppliers in Europe. Also represented by HBW (see distributor links).
http://www.speidels-braumeister.de for top end beer brewing equipment. Also represented by HBW (see partner links).
http://www.senson.fi/en/home for Finlandia kits (homebrew kits represented by HBW in Ireland).
http://irishfit.ie for nuts like us at HBW who sometimes overbrew and underexercise. We help these guys out from time to time organizing sporting events. Sean is a real motivator; if you want to have fun getting fit, check them out. They run the "Mooathon" in Donegal on the last Sunday in September, the "Cupid Race" in Phoenix Park on Valentines day, and numerous other fun events throughout the year.
http://homebrewwest.ie Bringing real value to home brew in Ireland