Welcome Morgan! There's a whole MG world in here for you to discover, so jump in and have fun. Bounce in the castle, take a ride on party dirigible, or have some serious conversations on one of the many threads.
To add to Morgan's comment; What should MG author blog about? I was wondering about "beefing up my platform". I have heard about other authors marketing themselves as well and just wondering what is the right way to go about it? Why does an unpublished author need to blog, twitter or facebook? What are the benefits? Besides making some awesome friends on AW how can a wannabe network? Not to be naive or anything, but I don't use any of the platforms previously mentioned (besides AW, obvioulsy) and I want to do all I can to become a published author, but is all that necesary or helpful? Just looking for some opinions and thoughts.