Here is an excerpt from the "updated terms of service" the bee emailed to Sacbee.com's registers users:
From time to time, and at sacbee.com's sole discretion, there may be certain content available via subscription or surcharge, and such content will be clearly marked. Because this is an advertising-supported service, we encourage you to patronize the advertisers that help to make this service possible. Note that currently most news articles remain available for 30 days in the pages of sacbee.com. The Sacramento Bee's electronic archives may carry a fee per full-text article downloaded.
Click here to see the full updated terms of service.
It looks nearly identical to the KC Star's terms of service John Landsberg discussed here. But I did notice the Bee's announcement says archives may carry a downloading fee.
Update: looks like other papers, including Raleigh and Anchorage, sent out the same email to registered users of their web sites.