Did you know that 500,000 people make their living selling wares on eBay? Apparently, that's the same number of people who are currently employed in San Francisco. eBay is like a city in itself!

Disclaimer: I'm not entirely sure if the numbers above are correct. I'm just reporting from something I heard at a technical conference... so don't go betting people and blame me if you lose money! =) Blame the speaker whose session I attended.