Earlier in the year, I stumbled across one of National Geographic's photo contests. It had a small entry fee, which I couldn't pay. So though it looked fun, I didn't enter.
Roll on some months and I've sold stories and earnt money. With a little time to go on the current contest (as it ends on October 31st), I entered a photo. I think this is my best photo of the year so far. The bumblebee was caught on the flower after getting soaked by the rain, so there's a little story behind it too. I doubt a bee picture has much chance in the nature category, but I figured it'd be fun to enter, and you never know unless you try.
The official entry page is here, where people can like it on Facebook or post it to Twitter. That doesn't have any impact on the contest itself, but it's there if you want it.