Biographical Directory of the United States Congress - John Cornyn
- Short biography along with political party, years of service in Congress and bibliography.
- http://bioguide.congress.gov/scripts/biodisplay.pl?index=c001056

FEC - Candidate Summary Reports: John Cornyn
- Official campaign finance reports and data from the Federal Election Commission.
- http://herndon1.sdrdc.com/cgi-bin/can_detail/S2TX00106

The New York Times - John Cornyn News
- Ongoing collection of news articles, commentary, photos and multimedia about the U.S. Senator for Texas.
- http://topics.nytimes.com/top/reference/timestopics/people/c/john_cornyn/index.html

SourceWatch Congresspedia - John Cornyn
- Encyclopedia article focused on his political career along with background data and links to additional articles and resources.
- http://www.sourcewatch.org/index.php?title=John_Cornyn

Wikipedia - John Cornyn
- Hyperlinked encyclopedia article provides a personal and political profile of the US Senator for Texas.
- http://en.wikipedia.org/wiki/John_Cornyn

OpenSecrets.org - John Cornyn
- Career profile of campaign funds raised and spent.
- http://www.opensecrets.org/politicians/allsummary.asp?CID=N00024852

Washington Post - The US Congress Votes Database: John Cornyn
- Features complete voting record along with a brief biography, roles in Congress and financial disclosure statement.
- http://projects.washingtonpost.com/congress/members/c001056/

Project Vote Smart: Senator John Cornyn
- Information from PVS including the Senator's biography, issue positions, interest group ratings, committee assignments, campaign finances, and voting record.
- http://www.vote-smart.org/bio.php?can_id=BTX59882

On the Issues - Texas Senator John Cornyn
- Provides quotes and background on various international, domestic, economic and social issues. Includes profile, contact data, forum and SenateMatch.
- http://www.ontheissues.org/Senate/John_Cornyn.htm