There are tons of things in my life that are totally awesome, but right now I'm going to say the internet. Why?
Through the internet, I have met so many really incredible people. In my RL, I am surrounded by either unbelieving family or by casual friends who don't get me. In some case, they connect with me in terms of faith, but really don't see how I could have any opportunity to do something good for God through, for instance, DragonCon. Alternately, they love the same weird geeky stuff I do, but aren't practicing Christians, or perhaps not even Christians at all. Since becoming active on forums, I've met many people who understand that you can be a Christian AND a geek/gamer/scifi-fantasy fan; it's not either-or. And I've become very close friends with several of them!
Plus, the internet has contributed in a big way to my creative growth. First, I've starting creating post art, avatars, siggies, and even website graphics. More than that, I've connected with other creative people, some like me and some very, very different. I'm involved in art and craft swaps on several forums, so that keeps me creating, too.
And that's not even counting all the Bible study and other resources on the internet that have helped me expand my mind and my knowledge.
So yay for the internet. And yay for everyone who has contributed to my experience of it. And yay for God, because He's so cool that He can use it for all types of good!