Yes, Facebook had better strategy. They embraced new tech to streamline the pain factor of navigating the website, whereas MySpace tried to optimize for discrete page views to serve more ads. MySpace would serve an entire interstitial page load with nothing but ads to get to different parts of its interface, whereas Facebook would embrace ways to jump to your friends' profiles or read your messages quickly, often without reloading the page.

It reminds me of how Google won the search engine war by delivering a more streamlined, less exploitative product.

And then of course there were a couple innovations that neither MySpace or Friendster had: photos with tags of your friends, and the concept of the News feed. It's hard to imagine a social network without those features, but they didn't exist before Facebook introduced them.