With this snippet, you can send to all Operators a Information about a task...

gistfile1.txt

public void alertOperators(org.bukkit.command.CommandSender sender, String alert)
{
	for(Player player : Bukkit.getOnlinePlayers())
	{
		if(player.isOp())
		{
			if(!sender.getName().equals(player.getName()))
			{
				player.sendMessage("§7§o["+sender.getName()+": "+alert+"]");
			}
		}
	}
}