New Blogcosm feature: people associated with top blogs

We launched Blogcosm with profiles of blogs; now we've added profiles of the people behind these blogs. The new index page starts with an alphabetical table of contents. There's also an index sorted by category, but that's pretty long at the moment. (TBD: split it by top-level category.)

For each person we include a short bio (if available) and list blogs and non-sites they are associated with. We also updated the blog profiles to include a list of people.

Each profile page has a comment form. If you have more information or good links for any person or blog, please share!