The standard measurements of the web on a monthly basis are number of uniques, number of pages viewed, time spent on site, frequency of visits–I could recite them in my sleep (I just did.)
But what other stats do you need to measure when you’re charting the 2 way web, the interactive web, web 2.0, the one where we all share and comment and contribute?
Some metrics that interest me–especially for publishers., portals, and companies trying to build community and commentary around their site:

• Frequency of posts (let’s make sure the bloggers know they have to post frequently)
• Number of comments per post, or
• Average number of comment
• % increase or decrease in number of comments
• Links in and out to the blog (power laws)
• Authority or attention of top 5-10% of linkees

Anything else you’d measure?
Side note: Steve Rubel has a good post today on a related topic–measuring the blogsphere not in terms of total blogs, but in terms of posts per second. He writes “David Sifry at Technorati wrote today that the search engine is seeing more than 900,000 posts per day on average, which means about 10 posts per second”–and that’s the one,
Thoughts?