I'm happy to have people forward articles and links to me that they think I might be interested in. That is, from people who already know what I'm interested in. Thankfully, I only have a couple of relatives that send me jokes; they no longer send me e-mail warnings and "amazing but true" stories (not since telling them about snopes.com).
NASA astronomer David Morrison occasionally sends out an e-newsletter called "NEO News," which offers news and commentary about near-Earth objects — the comets and asteroids that can threaten our planet. Yesterday he forwarded a brief, but well-written article, from the online arm of The Economist, a magazine that I would otherwise never read.
At some point the threat of asteroids will sink in enough to make a difference. An appropriate wake-up call would help: not another made-for-Sci-Fi-Channel disaster movie, but a significant crater-making event on the Moon in full view of everyone on Earth.