Hebrew Wikipedia features several organized article writing projects, among them Wikitort - an academic project to write original articles about tort law, PhysiWiki - a project to write and improve articles about Physics with the cooperation of Weizmann Institute of Science, and ongoing academic projects. Another major topic is Jewish history and the History of Israel. In 2006, the Elef Millim project () was launched to provide Wikipedia with free images. Groups of Wikipedians meet for field trips around the country to take pictures of Israeli sites.