Details on the Postage Rate Increase
The Postal Service did publish a full chart  early in the year with predicted rates (note: the free Adobe Reader  is required for viewing this document). Based on reports, the increase will only be one cent for first-class mail to 34 cents; additional ounces would go from 22 cents to 23 cents each.
The Postal Service also updated a list of Frequently Asked Questions . Check them out for the latest updates, including an explanation of international and priority mail.
The exact rate increase may be known after the Board of Governors meets Nov. 13-14.