Friends of PC Music Guru:
Rain Recording Ltd - Custom made Audio PC's for music production
Red Dog Music - Edinburgh's finest music technology emporium
EAV Pro Audio & Video - The world of pro-audio and video at your fingertips
Boyinaband.com - Music tech Vlog from "boy in a band" Dave with some wonderfully creative video tutorials and reviews - a fabulous resource - follow him on Twitter.

Manufacturers
Software:
Ableton - Live recording and looping performance software