The latest report from Ben Edelman, entitled “Large-Scale Registrations of Domains with Typographicl Errors.”  The author’s abstract:

The author reports more than five thousand domains that consist of minor variations on the addresses of well-known web sites, reflecting typographical errors often made by Internet users manually typing these addresses into their web browsers. Although the majority of these domain names do not suggest the presence of sexually-explicit content, and although many are variations on domain names frequently used by children, more than 89% offer extensive sexually-explicit content. In addition, these domains are presented in a way that temporarily disables a browser’s Back and Exit commands, preventing users from exiting easily. Most or all of the domains are registered to an individual previously enjoined by the FTC from operating such domains, and these domains remain operational subsequent to an injunction ordering their suspension.