Online Newsletters
Clicks from Fonts.com

Graphic Design Publications
Bak Magazine
Building Letters
CAP & Design
Communication Arts
Creative Review
Étapes:
Eye Magazine
Dot Dot Dot
Grafik
Graphic Magazine
Grrr
How Magazine
IDEA
ID Magazine
Print Magazine
Printing History
STEP Inside Design
Spatium
Visual

Recently discontinued publication
Emigre Magazine
tipoGráfica

Out of Print, but still useful
Alphabet 1964
Ars Typographica
Das Schreiben als Kunstfertigkeit
The Colophon
The Dolphin
Fine Print
The Fleuron
Fuse
The Monotype Recorder
Serif Magazine
U&lc
x-height magazine