You can read about recent legislation that was voted on, or look up additional votes from the 110th and prior Congresses through the Library of Congress.

Additional resources for researching how I have voted: 

• The Office of the House Clerk lists all official roll call votes from the U.S. House of Representatives.
• An Explanation of Roll Call Votes is published by the Library of Congress.
• C-Span Congressional Votes Library allows you to search for votes by subject and date.

The Washington Post also maintains a database of my voting history at this page.