The I-69 Evansville to Indy Study  
   The official Environmental Impact Study (EIS).
   http://www.i69indyevn.org/

Citizens for Appropriate Rural Roads (CARR)  
   Supports the I-70/US 41 routing versus the new terrain routing.
   http://www.carri69.org/

Evansville Courier & Press: Following I-69  
   A collection of maps and articles regarding the proposed routes.
   http://web.myinky.com/i69/

A Commonsense I-69  
   Supports the I-70/US 41 routing versus the new terrain routing.
   http://www.commonsensei-69.org/

Environmental Impacts and Engineering Assessment  
   The official Environmental Impact Study (EIS) for the portion between Evansville and the Henderson, Kentucky area.
   http://www.i69in-ky.com/

High Priority Corridors 18 and 20 - Interstate 69  
   Thorough overview.
   http://www.aaroads.com/high-priority/corr18.html

I-69 Texas  
   Regional information.
   http://www.texasfreeway.com/statewide/i69/i69.shtml

KentuckyRoads.com - Interstate 69  
   Regional information.
   http://www.kentuckyroads.com/I-69/

Interstate 69 Texas  
   Supporters.
   http://www.i69texas.org/

Interstate 69 Project  
   Tennessee official site.
   http://www.tdot.state.tn.us/information-office/I69/

DOTD I-69, SIU 15 Project Site  
   Official website for the area near Shreveport, Louisiana.
   http://www.i69dotd.com/

I-69 Segment #13 General Information  
   Official study covering El Dorado to McGehee in Arkansas.
   http://i-69.dina.org/

I-69 Texas Corridor Study  
   Official website for the statewide environmental study.
   http://www.i69corridorstudy.com/

Interstate 69 Shreveport to El Dorado  
   Official study covering Shreveport in Louisiana to El Dorado in Arkansas.
   http://www.i69arkla.com/

The National I-69 Steering Committee  
   Official site for the national planning and coordinating agency for the route's extension. Site includes a guide to the proposed and existing route corridors and links.
   http://www.nationali69.org/

Bloomington for I-69  
   Promotes the new terrain freeway proposed from Evansville to Indianapolis.
   http://www.i69bloomington.com/