Twitter is the hottest startup in Silicon Valley. The microblogging site hasn’t made a dime yet, but that hasn’t stopped the company from raising $35 million in venture capital funding. (Twitter has raised $20 million in previous rounds.)

With the new round of cash, Twitter co-founder Biz Stone said the company has "big plans" to "begin building revenue-generating products." A recent post by Advertising Age lists 9 ways the company can make money.

1. Charge for it
2. Advertising
3. Create a contextual ad engine
4. Charge for analytics
5. Enable Mobile Payments
6. Create subscription based groups
7. A Twitter Pro version
8. Merchandising
9. Sell the company