Just in case you wanted to know...
I mean, really. Properly. It lists all sorts of technically and scientifically accurate methods of destroying the earth. From being sucked into a microscopic black hole, to it getting hurled into the sun to it being gobbled up by stranglets (whatever they are) - its all listed, along with how feasible each method is.
It even gives you some general geocide strategy tips to help out in your planning.
There's even a “current earth destruction status”, from the “international earth-destruction advisory board”, which helpfully tells us:
So, anyway, go read the site. Even if you aren't interested in destroying the earth - its a good laugh.