A WWAN (Wireless Wide Area Network) uses mobile telecommunication cellular network technologies to provide data transfer. It is the generic term for more specific names like 3G network which is one implementation of a WWAN.

WWAN connectivity allows a user with a laptop and a WWAN card or an eBook Reader with this connectivity available to access the web. Some Web Tablets also include this ability either built in or as an addon. A general connection can surf the web with a Web Browser, check email, or connect to a virtual private network (VPN) from anywhere within the regional boundaries of cellular service. However some connections have restricted access to specific sites and perhaps for specific purposes such as buying eBooks or syncing eBooks. Some computers and eBook Readers now have integrated WWAN capabilities. This means that the system has a cellular radio (GSM/CDMA) built in, which allows the user to send and receive data. Since radio communications systems do not provide a physically secure connection path, WWANs typically incorporate encryption and authentication methods to make them more secure.

Note that while a cell-service is used to provide this connection you typically won't be able to use this service for standard voice communication. It is for data only. See also cell phone.

[edit] Available Services

• Whispernet is available for Amazon Kindle devices. The wireless connectivity is free.
• Nook 3G+Wi-Fi includes FREE wireless connectivity via AT&T, the nation's fastest 3G network - with no fees or contracts.
• iPad has a 3G model that has AT&T wireless built-in. The iPad 2 offers a choice of AT&T or Verizon.
• Motorola XOOM has Verizon support built-in.