Marketers spend many millions trying to capture the eyeballs of today's youth. What are they learning about the current and -- more important -- future spending habits of this generation?

Ross Rubin of Reticle Research moderated a youth-led panel at the recent "Engadget+gdgt Live" conference in New York City. He spoke with Motley Fool analyst Rex Moore about one thing Facebook (NASDAQ:FB) should worry about, and one thing it's doing right.

Rex Moore has no position in any stocks mentioned. The Motley Fool recommends Facebook. The Motley Fool owns shares of Facebook. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.