It is an interesting period for Ukraine right now. On November 21 Ukrainian leaders unexpectedly suspended preparations for signing an Association Agreement with the European Union. Ever since then protests have been taking place in Kiev and other cities around Ukraine. The demonstrations have been called "Euromaidan" and began exactly 9 years to the day after the start of the Orange Revolution.
A substantial majority of Ukrainians support the path of European integration. This is not an issue that splits the country in half like the Orange Revolution. Most politicians consider the country's European course the only possible option. And yet Yanukovich abandoned negotiations.
The latest news can be read at the well-known Pravda.com.ua site in Ukrainian and Russian. Lenta.ru has faster and more news in Russian.
Pravda.com.ua now has a news feed in English.
There is also a TV station broadcasting live in Ukrainian: http://hromadske.tv/
A summary of events can be read on Wikipedia in English.
Read about the significance of the Euromaidan at TryUkraine.com