Acting President Goodluck Jonathan appealed to Nigerians today to stop putting adverts in newspapers to congratulate him on his new role, according to Reuters. Such adverts are a common way for Nigerians to try to curry favour with new administrations. "The Acting President has similarly placed a ban on solidarity visits," said a statement from Ima Niboro, Senior Special Assistant on Media and Publicity. Jonathan assumed executive powers last week to fill a leadership vacuum in Africa's most populous nation more than two months after President Umaru Yar'Adua was hospitalised in Saudi Arabia. In his first national address, Jonathan said good governance, accountability and transparency were among his most important commitments. "Dr. Jonathan restated the commitment of the administration to secure Nigeria's path to greatness and guarantee our place among the great nations of the world in the shortest possible time," the statement said.