This article needs additional citations for verification. (January 2008)
|Founded||February 11, 2004|
|Dissolved||July 1, 2012|
It required an invitation from an existing member to register.
The website was founded by Wojciech Sobczuk and launched on February 11, 2004.
- Bilefsky, Dan (March 4, 2010). "Dark Film on Teenagers Echoes From Mall to Church". The New York Times.
- Ratuszniak, Beata (27 May 2009). "2 mln zarejestrowanych użytkowników Grono.net" [2 million registered users of Grono.net] (in Polish). Media2.pl.
- Chrobot, Michał (2 July 2012). "Grono.net zniknęło z sieci! Hosting plików zamiast społecznościówki" [Grono.net has disappeared from the web!]. Computer Bild (in Polish).