Syrian President Bashar Assad's security forces opened fire on protesters, killing at least 24 people nationwide, according to activists. It did not stop the crowds from chanting, "Your turn is coming, Bashar."
Yemenis delivered a similar message to President Ali Abdullah Saleh, who survived an assassination attempt in June. "Gadhafi is gone, and you're next, oh butcher," they chanted.
The armed rebellion that drove Gadhafi from power -- with NATO air support -- appears to have breathed new life into the uprisings elsewhere in the Arab world.
"Our souls, our blood we sacrifice for you, Libya!" Syrian protesters chanted Friday.
Gadhafi was killed Thursday under still-murky circumstances, although he apparently was dragged from hiding in a drainage pipe, begging for his life.
His brutal end less than two months after he lost control of his oil-rich nation follows the ouster of Tunisia's Zine El Abidine Ben Ali, who has been driven into exile, and of Hosni Mubarak of Egypt, who is in jail and facing charges of complicity in the deaths of more than 800 protesters.
All three uprisings have given Syrian protesters hope. One banner read, "Ben Ali fled, Mubarak is in jail, Gadhafi is killed, Assad . . . ?"