An online study of over 17,000 people, done by David Greenfield in conjunction with , was presented at the 1999 American Psychological Association meetings in Boston, MA  found approximately % met the criteria for an Internet addiction diagnosis. Several factors including dissociation (time distortion, disinhibition, ease-of-access, and content variables) contributed to compulsive Internet use; results of the study were published in CyberPsychology and Behavior  and later included in Greenfield's 1999 book Virtual Addiction . 
while chat online
A language exchange is two or more people speaking different languages and practice each other's language via text chat, voice chat, video chat and email chat. For example, an English speaker who wants to learn French will do a language exchange with a French speaker who wants to learn English. There are several ways to participant in a language exchange.
In the default method, small mixed groups of native speakers of two languages spend half the time speaking in one language and half the time in the other. Activities are structured to ensure all areas of language acquisition are exercised such as vocabulary, pronunciation and listening comprehension.
A language exchange is also a wonderful way to learn the real spoken language of the culture, with all its "incorrect" grammar, informal expressions and slang. Therefore, a language exchange is the best training to bridge the gap between classroom learning and communicating in the real world.