Internet
Iway
(http://www.iway.com) has a branch at 59 park st opposite music world with around 20 computers and fast connections. ~rs 25/hour.
Cell phone coverage in the city is excellent. There are many service providers offering a wide variety of plans. Among them are Airtel, Vodafone (http://www.vodafone.in), Reliance (http://www.relianceinfo.c...), and Tata Indicom (http://www.tataindicom.com/). It might be a good idea to buy a cell phone and use one of those prepaid plans to get yourself connected while you are in the city.
Kolkata is a huge city, so all individual listings should be moved to the appropriate district articles, and this section should contain a brief overview. Please help to move listings if you are familiar with this city.
there are scores of interenet cafes that have sprung up in every nook and corner of the city. just look for them and you will find them.charges vary at around ~Rs.15 to 25 per hour.
Kolkata is reasonably safe, and in general the people are more friendly and helpful than in many of India's other large cities. One noted problem is the drug dealers around Sudder Street. However, as the dealers obviously do not want to draw undue attention to their activity, they are generally not persistent and rarely a threat.
talk
Being in Poshchimbongo, i.e.West Bengal, the native language of the people of Kolkata is Bengali. However, most educated people speak Hindi and English as well, and many others such as shopkeepers and taxi drivers would be able to communicate in broken English at the very least. Although it is generally not a problem getting by with English, it goes without saying that learning some Bengali will make your trip much smoother.