Researchers are using data from Facebook, YouTube, Twitter and other social media sites. There are, however, questions about the accuracy of the reports coming from Syria.
The hostility between Iran and Egypt dates to the 1970s, and the Muslim nations remain wary of one another. However, tensions have thawed in recent months.
The Bolshoi Ballet is deeply beloved in Russia. But a series of recent scandals — capped by a nasty acid attack on the company's artistic director in mid-January — has sent shock waves through artistic circles.
There are growing calls for Syria's leaders to face war crimes charges for the assaults against rebel targets and civilian areas. If that happens, veterans of past war crimes prosecutions say, Syrians will have one big advantage: the widespread gathering of evidence across the country.
From Iranian President Mahmoud Ahmadinejad's visit to Cairo, to the ongoing violence in Syria, Rami Khouri, columnist for Beirut's Daily Star recaps developments in the Middle East and reflects on lessons learned two years after the Arab Spring.
Ayatollah Ali Khamenei turned to social media recently. Meanwhile, Iran's government has stepped up efforts to identify and target online pro-democracy activists. Analysts say the government is using increasingly sophisticated methods to shrink the online space for free expression.
Debt-burdened Greece's fragile political stability is under attack. On the left, anti-government groups have bombed a series of Greek government offices, banks and other symbols of the establishment. Meanwhile, violent attacks by supporters of a neo-Nazi and anti-immigrant party are also on the rise.
Haiti is trying to sell itself as an international vacation hub in a bid to revive its once-vibrant tourism industry. Officials say tourism could be a major driver of economic growth and help lift Haitians out of poverty.
Valencia, which once spent lavishly on tourism projects, now epitomizes the worst of Spain's economic problems. Its landscape is littered with empty and half-finished buildings, and the regional government has run out of funds to repair schools.
The United States is looking to base surveillance drones in the African nation of Niger. The base there will allow the U.S. unmanned vehicles to conduct operations in northern Africa, including in Mali, where France has intervened to fight Islamist militants. Tom Bowman talks to Melissa Block about the latest on the increasing U.S. military role in Africa.