I would suggest adding RSS as well, for each category shown. That can allow users to pull the information instead of it being pushed out via phone/email/webhook. And it also means we can minimize the personal information we're giving out.
Category list is found at: https://github.com/BugAlertDotOrg/bugalert#category
Again, working on getting this all up on the site soon if you'd prefer to just check back later.