Since I'm mainly about fics, I'm only really active on fimfic.net. So if you follow for the stories, go there.
In any case, I am organizing an AppleDashLight (Applejack + Rainbow Dash + Twilight Sparkle shipping) contest, as I think those three have the best chemistry of the mane cast, and would make an awesome 3 way relationship.
If you're a writer and you think you might be able to do something for that, go here: http://www.fimfiction.net/blog/266297/appledashlight-contest . You'll find contest rules, and prizes!
Small AppleDash contest update and more! by Tchernobyl, journal
Small AppleDash contest update and more!
Most important of all, the AppleDash writing contest - you can find the rules/forum in my previous journal. However, here's the update:
One of the prizes will be a diorama made by Vulpinedesigns which I will pay for myself. Check their gallery for examples!
Also, the awesome Whitedove-creations of MLP plushie fame is holding a giveaway. Check the page here for participation info!
Giveaway journal page :)
Good luck to all :)