Free Wi-Fi is commonly available from public libraries, restaurants, hotels and certain other places of business. Some cities also make free Wi-Fi available to the public in certain areas.
Public libraries are a consistent source of free Wi-Fi access with no strings attached. Many libraries have WiFi open to any visitor, but some may require the user to sign in or create an account using their library card. College libraries that are open to the general public also usually have a Wi-Fi network, but these are more often restricted to use by students and faculty only. It may be possible to get a visitors pass, however.
Many businesses also offer free Wi-Fi to their customers. Some examples of major national chains with free Wi-Fi at many of their locations include Starbucks, McDonalds and Peet's. These businesses may require a purchase to use it, but it can be something as inexpensive as a small coffee.
Some cities and towns have set up free Wi-Fi networks. These generally do not cover the entire city, but are restricted to specific areas, often focusing on the "downtown" area. Private companies such as Google have also set up their own free public Wi-Fi networks in certain cities, such as San Francisco.