Bullseye Glass Company is a Portland, OR based manufacturer of coloured glass for art and architecture with worldwide distribution. Along their manufacturing business they’ve also developed a strong education and residency programme for contemporary kiln-glass.
Their website features an entire section on “education” focused on kilnforming, kilncasting, flameworking, and coldworking methods. Materials range from articles, inspirational and tutorial videos to online classes.
Link:
Bullseyeglass, Bullseye Glass (videos)
Provider:
Bullseye Glass Co. (USA)
Costs:
lots of free materials – especially articles – but some services are by subscription only (e.g. videos for US$45 per year)