The offices of Jamii Forums were raided by police on December 14, and multiple other staff were questioned.
While Magufuli's clampdown on corruption is welcomed, some are worried by his banning opposition rallies and placing heavy restrictions on the media.
Dar es Salaam is on course to be Africa's fastest-growing urban centre, with an estimated annual growth rate of eight percent.
So who is Robert Mugabe and how has he held onto power for so long?
President John Pombe Magufuli's maiden visit to Kenya should end the grandstanding between the two countries, writes Sekou Toure Otondi.
Until recently few African countries had legislation related to cybercrime. Police may need further training to deal with digital offences.
What exactly does the court do? This animated video can help explain.
It is particularly dangerous to be an elderly person in Tanzania’s rural areas and villages.
Free trade in medicines, combined with tax and import regimes that favour importers, has hit local pharmaceutical companies in Tanzania and Kenya.
Tanzania and Kenya have for years courted Uganda for the billion-dollar pipe, but Magufuli goes home with bride after Nairobi offers only a dream.
Burundi most miserable nation in world, report says. Togo, Benin, Rwanda, Guinea, Liberia, Tanzania, doing badly too
The World Happiness Report seeks to quantify happiness as a means of making societies healthier and more efficient
Tanzania's Magufuli banned Independence Day partying and state Christmas cards; when will the big moves come?
These actions change the tone and mindset. What is needed is comprehensive structural changes to address long-term problems.
Will use funds to enter its second African market, Rwanda, and increase energy access in Tanzania by one million homes by 2017.
East African Safari Classic Rally: the real boys' playground where the wealthy and ballsy push fun to the limits
To compete a local team will pay $17,500 whilst an international one will fork out a whopping $43,000
Testament to the human spirit: 5 Tanzanian miners freed after 41 days underground—they ate roaches and frogs to survive
When they called out for help other miners thought they were hearing evil spirits and fled, but had the presence of mind to report it.
Sunday vote bonanza: Tight race in Tanzania, easy run for Ouattara in Ivory Coast, in Congo Nguesso seeks presidency for life
Two general elections, and in a tense vote to change the constitution in Congo, long-term ruler wants to extend his stay office.
Edward Lowassa came up short in attempt to succeed outgoing president Jakaya Kikwete on Chama Cha Mapinduzi ticket.
Jamil Mukulu, the 51-year-old head of the Allied Democratic Forces, will face trial in Kampala, authorities said.
38 hopefuls scramble for Tanzania ruling party presidential nod; it's one of the most open races in Africa yet
The winner is expected to take the east African country's top job after October elections.