This can happen sometimes, it just means who ever found those blocks decided not to include those transactions, it will most likely be in the next few blocks.
I keep reading this over and over...
Now, million bitcoin question: How the hell do they decide which transactions to include?
Or does this question need another thread?
Priority is calculated from the size of the transaction (in kb) and the length of time the sending account has been idle. This is necessary to prevent transaction spam. If your transaction is low priority, the client should suggest a fee Be included.