### Comment:
What are some popular methods used in illegal online gambling for money laundering?

### REPLY:
Some popular methods used in illegal online gambling for money laundering include structuring transactions, smurfing, and using virtual currencies like Bitcoin. Structuring involves breaking down large sums of money into smaller, less suspicious transactions to avoid detection. Smurfing refers to using multiple individuals or "smurfs" to make small deposits or withdrawals to further conceal the source of the funds. Virtual currencies like Bitcoin provide a level of anonymity that can be exploited for money laundering purposes.