In the article two fundamentally different varieties of well-known in the modern Russian-language Internet genre of anonymous collective encyclopedia – Russian Wikipedia and Lurkmore.ru – have been discussed. Originally created as a carnival, a postmodern parody of Wikipedia, Lurkmore.ru develops some new traits, such as judgmental subjectivity, arising from the desire of authors to demonstrate not only their creativity, but also sincerity, courage and freedom. But the main feature of Lurkmore.ru, according to the author, appears to be informality.