Analysis of information sources in references of the Wikipedia article "Criticism of Facebook" in English language version.
{{cite book}}: |journal= ignored (help){{cite web}}: |first= has generic name (help)The social media giant channelled €18.7 billion in revenue through its Irish subsidiary, an increase of 48 per cent from the €12.6 billion recorded in 2016. While gross profit amounted to €18.1 billion, administrative expenses of €17.8 billion meant profit before tax increased 44 per cent to €251 million.
{{cite book}}: |journal= ignored (help){{cite web}}: |last= has generic name (help)Facebook Connect was developed independently using proprietary code, so Facebook's system and OpenID are not interoperable. ... This is a clear threat to the vision of the Open Web, a future when data is freely shared between social websites using open source technologies.
{{cite news}}: CS1 maint: multiple names: authors list (link)