Why was block # 289791 empty of any transactions? I just came across something strange, block no 289791 which was mined on Mar 10, 2014 is empty of any transactions. Is it because the miner refused to accept any? Or something else?
This is the previous block,

289790
Number Of Transactions  86
Height  289790 (Main Chain)
Timestamp   2014-03-09 23:24:02
Size    43.853 KB


This is the block you are talking about

Number Of Transactions  1
Height  289791 (Main Chain)
Timestamp   2014-03-09 23:30:23
Size    0.183 KB


As you can see by the size of the previous block, there was little activity in that time, only 43 KBs worth of transactions, you can also note that both blocks came less than 5 minutes apart, so perhaps the transaction pool was emptied by the previous block and there wasn't enough time for a new transaction to be broadcasted after that. Since every minute counts, miners won't wait for a new transaction to appear because they run the risk to lose the block reward.