Alwaysreading is by Adrian Sampson. Please contact the author with comments, suggestions for improvements, and copious blind praise.
The source code for this site is available under the MIT license. It is mainly written in Python (and a lot of JavaScript) and runs on Google App Engine.
The fonts used on the site are IM Fell and Molengo, from the Google Font Directory. (On the mobile version, it's just Helvetica.)
This site also uses the jQuery and Datejs JavaScript libraries.