Tunecore (great for getting your music onto iTunes): http://whww.tunecore.com/
Legend Communications (web hosting): http://www.legend.co.uk/
icc Duplication (great CD duplicators): http://www.iccduplication.co.uk/
Flame: http://www.cardiffmethodist.org.uk/flame.html
Soundonsound Magazine (really useful magazine with a brilliant forum): http://www.soundonsound.com/
Another brilliant forum: http://www.logicprohelp.com/