Internesia is an inability to remember which Web site or other Internet facility you saw an item of information on. It is an important form of the more general condition known as infonesia , which is the inability to remember where you saw an item of information from any source (newspapers, television, and so forth).
Infojunkies are especially susceptible to internesia. A person who can never remember a Web site is an internesiac. Bookmarks may help, but many internesiacs bookmark so many sites, they can't find anything on their bookmark list or remember the right search word.