Media in Nigeria has a long history in comparison to most other African nations.
Historically, Nigeria has boasted the most free and outspoken press of any African country, but also one which has consistently been the target of harassment by the past military dictatorships. Many agents of Nigeria's press have been imprisoned, exiled, tortured, or murdered as a result, among them being Ogoni activist and television producer Ken Saro-Wiwa, who was executed for treason by order of the Sani Abacha dictatorship in 1995 (resulting in the expulsion of Nigeria from the Commonwealth of Nations and sanctions from abroad).
Even under the somewhat less-oppressive current civilian government, journalists have continued to come under fire, be it from the government (as with the June 2006 arrest of Gbenga Aruleba and Rotimi Durojaiye of African Independent Television under charges of sedition) or from other popular establishments (such as the self-imposed exile of Thisday's Isioma Daniel following the riots in Northern Nigeria over "sensitive comments" which she had made in an article regarding Muhammad and the 2002 Miss World pageant.
A fatwa calling for her beheading was issued by the mullahs of northern Nigeria, but was declared null and void by the relevant religious authorities in Saudi Arabia, and the Obasanjo faced an international public relations smearing [especially within journalistic circles) in the aftermath, which was not helped by the Amina Lawal controversy which had occurred prior to the riots, which had seen over 200 dead). However, as with most other countries, blogging has increasingly become a much safer, and much easier, conduit for Nigeria's growing Internet-enabled minority to express their dissatisfactions with the current state of affairs in Nigeria.
Brown envelope journalism in Nigeria is a practice whereby monetary inducement is given to journalists to make them write a positive story or kill a negative story. The name is derived from cash inducements hidden in brown envolopes and given to journalists during press briefings. It is a common practice in Nigeria and many journalists do know whether it is unethical. One of the effects is that the Nigerian media has become a thriving arena for sponsored stories.