This blog entry by Chris Bowers for Open Left summarizes exactly where the debate and likelihood for passage on the public option stands at this moment.
In addition, there is a report that summarizes the likely vote count as of this moment should a bill reconciling the House and Senate bill come up for a vote right now.
Another issue the site is covering is the referendum in Maine on gay marriage, and an update on the Vote No on 1 Campaign in Maine is provided by Andrew Davey.
Both of these votes are going to be nail biters, I think.