"According to the Wall Street Journal, between May 10 and 20, as Hamas and Israeli forces clashed, the al-Qassam Brigade's flagship website, alqassam.ps, saw a considerable increase in traffic and engagement, which is the length of time visitors remain on the site, according to an analysis by the Counter Extremism Project, a New York-based non-profit group that describes Hamas as a violent Islamist extremist group."