Forum ideas:

• Allow anonymous users to subscribe
  - Instead of it subscribing to the logged in users provided e-mail, when they click the 'subscribe' link it would pop up in a colorbox and ask for the e-mail to send subscription notifications to.
  
  
• Allow "subscribe to author"
  - Instead of just subscribing to a thread or forum, allow users to subscribe to the posts author, they would then get notifications anytime that the author posted on the forums.
  
  
• Force subscribe for admin posts
  - Make it so any posts made by administrators are automatically e-mailed to all users. This would definitely need to be a changeable option per-forum, so we could set it to do that in a "Important notifications" forum but not have it do that in a "help" forum, etc.

Blog ideas:

• Easy post for logged in users
  - When a user is logged in, they shouldn't need to fill out the "name" and "e-mail" inputs before posting a comment. This information should be garnered from their account.
  
  
• Popular posts list/popular categories list
   - Not sure how possible this is, but I'd like to be able to set up a feed based on how many views (or perhaps how many comments) a post gets. Also, I'd like to have a list of "popular categories" above my blog, so it would be nice to set up some kind of server-side thing that keeps track of it.
  
  Otherwise, I'll decide myself and manually add links to those categories, but if it can be done in the CMS I think it would be a nice feature. (Lists like this are commonly found in footers etc).

I hope these ideas are helpful,
-Isaac