Šťastný úsměv is the voluntary association in Czech Republic founded in 2005.
According to PR-model, stastny-usmev.cz is ranked 673,932nd in multilingual Wikipedia, in particular this website is ranked 6,842nd in Czech Wikipedia.
The website is placed before bookshop.bg and after atticanews.gr in the BestRef global ranking of the most important sources of Wikipedia.
