The Blog Authorship Corpus

The number of blog corpora is slowly increasing (motivating some discussion on standards for annotation?). Here is one that I was peripherally aware earlier but just rediscovered: The Blog Authorship Corpus.

The Blog Authorship Corpus consists of the collected posts of 19,320 bloggers gathered from blogger.com in August 2004. The corpus incorporates a total of 681,288 posts and over 140 million words - or approximately 35 posts and 7250 words per person.  

Moshe Koppel has done plenty of work in the area of authorial analysis. Note that this is a zero barriers to entry corpus - just download it. It isn't very large, but certainly of value for researchers in the authorial analysis area.