ENFacebook is a social networking website which gained a huge popularity in the last decade among university students. Recent papers show that Facebook favors meeting new people, staying in touch with friends, getting useful information and knowledge, sharing of documents, joining groups and participating in group discussions. Although the usage of social networking websites in general and Facebook in particular has been extensively studied, this is little data available regarding the variations across countries, towns, and gender. This paper aims to comparatively analyze the results of two studies carried on in Lithuania and Romania. The data show that the reasons why university students are using Facebook differ from country to country and from town to town. Female university students have larger Facebook networks and spend more time on Facebook than male university students. [From the publication]