Wikipedia - Tamil Nadu
- Guide to the state. Includes information on geography, language, history, and economy. Links to district and more specific data.
- http://en.wikipedia.org/wiki/Tamil_Nadu

Indiaclickinfo
- Link page and website for a series of directories and guides providing information about the country.
- http://www.indiaclickinfo.com/

Tnoli
- Business portal for Chennai and Trichy. Information about businesses, hotels, and travel.
- http://tnoli.com/

Vanavil
- Portal site for Tamils covering shopping, film reviews and songs and articles.
- http://www.vanavil.com

Tamil Search
- Web search for any Tamil site.
- http://www.tamilsearch.net/

Southindia
- Provides information about South India's travel packages, information to tourists, and students.
- http://www.southindia.com

Tamil Nadu Cities Guide
- Comprehensive guide to towns and cities in Tamil Nadu
- http://www.searchindia.com/search/Regional/States/Tamil_Nadu/Cities/index.shtml

TamilAnnam
- Web guide to Tamil and Tamilnadu related resources.
- http://www.tamilannam.8m.com