We could say that 2010 was a great year for typography on the web... With the arrival of new tool and services, web designers are not limited to websafe fonts and that's great. You could find lots of websites which treat about typographic subject but few could be taken as reference.
Here is a list of great typo-related websites, blogs or articles.
If you like great layout, grid systems, modernism, rare design books you could check Antonio Carusone website
Eric Spiekermann, one of the most influential contemporary type designer share his thoughts on his blog
An index of the best free font sites on the web.
This is the kind of place to find inspiration
a simple blog where you could discover beautiful types throught beautiful letters
A really interesting blog with cool monthly reviews and a great "know your type" section...
Probably one of the most important website about typography (written by John Boardley)
Unfortunately not updated since a while but you could search the archives to read great articles about web typography.
A great blog to discover great fonts
The Tim Brown's blog, about... web type of course !
"Reflections on the joyous elegance of graphic design & creative thought"
"The FontFeed is a daily dispatch of recommended fonts, typography techniques, and inspirational examples of digital type at work in the real world. Eat up."
A great website to discover the typographic projects of great artists.
The personal disquiet of Mark Boulton
The world known Mark Boulton share his thoughts on this blog... a place to bookmark.
Daily letters by Craig Wills
The Adobe Type Team blog
The Case & Point is a curated selection of custom type design and lettering created for a specific project or use.
Typedia is a resource to classify, categorize, and connect typefaces.
The Typekit blog is a great place to learn about web typography and discover great websites ! A place to bookmark for sure...
Type-themed & type-inspired iPhone & desktop wallpapers for typenuts.
A monthly magazine about design, typography, news and other things that warm your heart.
"Typographica is a review of typefaces and type books, with occasional commentary on fonts and typographic design. Edited by Stephen Coles"
One of the most well known typo-forum
"a blog about Typography, Letterpress and Printing History."
Searching for design inspiration ? Check this blog !
The other cool place run by John Boardley and other contributors. A great place to see some great typographic work from all around the web.