Over at his blog, author Tobias Buckell (Crystal Rain, Ragamuffin, Sly Mongoose, Arctic Rising, The Apocalypse Ocean...and a lot more) talks about his experiences at Worldcon, his thoughts on how cons work for him as a professional writer, and so much more. It's my favorite post-Worldcon post thus far this year, so anyone interested in a pro-writer's perspective on the value of cons to writers should definitely read his post.
And then you should go buy a whole bunch of his books. Basically, all of his stuff is amazing. I won't pick for you. Just...start somewhere :P