Blogging

% of new commentators

% of unique visitors / members commenting

Average comments per blog post

Average new visitors per blog post

Average number of new blog entries

Average number of trackbacks per blog post

Average returning visitors per blog post

Average thread length in comments

Average word count in blog post

Average word count of comments

Flesch–Kincaid Grade Level

Frequency of blog posts

Number of commentators

Number of RSS subscribers