Coptic phonology links
Ⲧⲉⲛⲁⲥⲡⲓ ⲛ̀Ⲣⲉⲙⲛ̀Ⲭⲏⲙⲓ Yahoo group – hosts many discussions on Coptic pronunciation and the Coptic language in general
Kame forum – a forum for the revival of the Old Bohairic pronunciation as expounded by Fr Shenouda Maher Ishak (formerly Dr Emil Maher Ishak)
Ⲧⲉⲛⲁⲥⲡⲓ ⲛ̀Ⲣⲉⲙⲛ̀Ⲭⲏⲙⲓ website – hosts many resources on Coptic pronunciation and the Coptic language in general
Old Bohairic pronunciation – a page describing the history of recent Coptic pronunciation and support for the Old Bohairic pronunciation as expounded by Fr Shenouda Maher Ishak (formerly Dr Emil Maher Ishak)
Coptic pronunciation reform – the Wikipedia entry on the Old Bohairic and the Coptic pronunciation reform
The Correct Traditional Pronunciation of the Coptic Language – a collection of audio recordings of Coptic lessons, liturgy and hymns prepared by Fr Shenouda Maher Ishak (formerly Dr Emil Maher Ishak) in the Old Bohairic pronunciation
Old Bohairic vs Graeco-Bohairic – an archived discussion thread on the coptichymns.net website
The Pronunciation of Ancient Egyptian – a discussion of the pronunciation of the Ancient Egyptian language followed by a note on the phonology of Coptic and several points questioning the authenticity of the Old Bohairic pronunciation
copticsounds 
Very well done , thank you.