This post is basically a pimp post. I discovered a bunch of really neat writing communities for anyone who is interested!

100originalfics - A writing challenge community about writing one hundred fics centered around an original setting/character you’ve chosen.
authors - This is a community where authors may speak about their works, post their pieces, or discuss writing.
all_unwritten - Prompts for everyday writing.
bookpublishing - specifically devoted to...well...publishing books! Maybe you're a writer, editor, or designer or perhaps you're just interested in learning more about the field. Regardless of your background, this is a great place to network with other professionals and share your personal experiences.
discuss_writing - Where the tips and techniques of writing can be discussed.
fantasywriters - For those who write fantasy and those who read the fantasy that others have written.
fictionwriters - A community for writers of fiction.
food_in_fiction - Discussing food in fiction, and helping writers correctly or creatively use it in fiction.
imagination500 - A Weekly Prompt Community.
musemuggers - Created to help writers break writer's block, it is also useful as a warm-up exercise, or to help you generate short stories for possible publication.
origfic_promo - A community for writers of original fiction to post their work to gain a wider audience.
pleasepublishme - An Aspiring Writers' Support Group.
project_finish - Awarding writers who reach their goals, and aiding writers in finishing their projects.
seriouswriters - A community for people who are serious about improving their fiction writing abilities.
sfandf_critters - This is a workshop for writers (and readers) of speculative fiction to put up works for critique, critique the works of others, ask questions, discuss and debate, share resources, and just have a good time.
writer_ads_news - Advertise Writing Comms/Search for Writing Communities.
writers_guild - This community was created for writers of all kinds who might like to talk about the mechanics of writing and its pitfalls and rewards.
writers_loft - An original fiction community for talking about the writing process, troubleshooting troublesome writing problems, brainstorming, seeking beta readers, getting opinions on something you are working on and asking questions about writing and the business of writing.
writingfantasy - This is a community geared towards the magical world of fantasy and writing.
writingfeedback - This community is for people who would like critical feedback on their writing.