Invisible Children knew that it was targeting culture makers and youth. And Twitter users no less. Indeed, check out the list of "culturemakers" that they encouraged youth to target. It's an interesting mix of liberals (George Clooney, Ellen Degeneres, Bono), conservatives (Rick Warren, Rush Limbaugh, Bill O'Reilly), geeks (Bill Gates, Mark Zuckerberg), big philanthropy names (Oprah, Angelina Jolie, Warren Buffett), and pop stars (Lady Gaga, Taylor Swift, Rihanna, Jay-Z, Justin Bieber). Plus others. They also recommended contacting political figures. (Interestingly, they start with G.W. Bush and Condoleeza Rice and don't list Obama at all.) As Lotan points out, these celebrities got pummeled with thousands upon thousands of messages from fans, predominantly young fans. And many of them responded.
When celebrities receive this kind of onslaught from their fans -- and, especially their younger fans -- they pay attention. And so they post out about this. This is exactly where the fuzzy feelings towards attention philanthropy kick in. Young people feel like they did something by getting a celebrity to pay attention to a cause. A celebrity feels like they've done some by talking about the cause to a wide audience. And, voila, Invisible Children taps into the attention economy to get their message out.