How does the bloggers page function

How does the page that lists all the bloggers work and are there any settings for this page in the admin? Is it possible to have it display all bloggers alphabetically or in another order also it doesn't seem to display all of the bloggers on my website? On our site bloggers need to be added in the admin so we only have about 40 however I only see about 30 on the bloggers page.

Thank You
Matt