If you learn nothing else from Wikipedia, learn this: Begging annoys users and isn't particularly successful. He is far more likely to make money selling a premium subscription to corporate users. He can even just say "site is free for personal use, and corporate users must pay $495/year". You would be surprised at how many businesses are paranoid enough about compliance that they will voluntarily pay even if it is unlikely that the site owner would ever find out about their unauthorized corporate use.