Wikipedia - Kolkata
- Information on the history, monuments, institutions, arts and education in the city.
- http://en.wikipedia.org/wiki/Kolkata

Kolkatta.com
- Information about the city. Includes business listings.
- http://www.kolkatta.com/

Kolkata Best
- A Kolkata portal, business and utility listings.
- http://www.kolkatabest.com/

Calcutta - Travel Guide
- Travel tips, information about volunteering in Calcutta and links.
- http://pages.cthome.net/india2/

Click Calcutta
- Lists current events in the city.
- http://www.clickcalcutta.com

Calcutta Central
- Searchable directory of local businesses and organizations.
- http://www.calcuttacentral.com/

Catchcal
- Business and utility information directory, maps of the city.
- http://www.catchcal.com/