f i g i t a l - Spectra Tutorial
This site contains the start of a reasonable Spectra tutorial. Good site if you are looking at Spectra as an option for development.
Forta.com - Allaire Spectra E-Business Constructio
Information on Ben Forta's book about Spectra.
Macromedia Spectra
Content management system from Macromedia built on top of ColdFusion
Macromedia Spectra Community Source Project
Macromedia's Community Source licensing model invites Spectra developers to submit code fixes and modifications to the Macromedia Spectra product team for review and testing.
Spectra Support Forums
Macromedia hosted Spectra support forum.
Spectra-Talk
A mailing list dealing with Spectra content management system.