Tonight we added a 'Hot Posts' feature to the site. You can reach it using the link in the red title bar. Although its operation isn't identical to the old Hot Posts implementation, we hope that it achieves many of the same goals.
Check it out and let us know what you think.
Technical note: We are still tuning how we expire the list if you don't use the "mark as read" function. Right now if you come back after an extended period of time, we will show you what is new since the last time you viewed the page. However, most people who view the page frequently will want to just click "mark as read" to clear out the page every time they view it, instead of waiting for the time-based expiration.