Cyber cafes can vary in appearance, ranging from plain spaces filled with computer workstations, to small hole-in-the-wall locations with a simple computer and dial-up modem, to actual cafes offering food and drinks for purchase.
Public internet access isn't limited to cafe-style establishments anymore. You'll find computers with public internet access in copy centers, hotels, airports, on cruise ships, and more. Many places offer printing and scanning services, as well.
Internet cafes are particularly useful for travelers who decided not to lug laptops along on their trip. They are common in many countries, and using their services is often inexpensive, especially if you're just checking email, sharing digital photos, or using VoIP for short periods of time.