dailyprompt and daily_prompt are both prompt-based writing communities that encourage both original and fanbased writing. Not much to say here, but for people as lazy (and rusty) as I am, a little dose of daily inspiration is always appreciated.

storycubes is a prompt community based on Story Cubes, which are a set of nine six-sided cubes that have a different picture on each face. All you have to do is ask for a roll and tada, you've got yourself nine prompts! It's probably one of the more original prompt-based communities I've seen so far on DW.

stayintheroom is another prompt-based community, but this one is encouraging original writing, which I think is totally awesome. (We need more original writing comms!) This community posts general prompts on Mondays and character based prompts on Fridays, and you can always go back and post on older prompts, if you wish!

inkstains is like Brigit's Flame on LJ, but is focused more about the writing, which is awesome. Basically, this is a monthly challenge community. At the start of each month, you can sign up for the challenge, and then prompts will be posted after a week or two. Members vote for their favorite pieces of fiction, and half the writers move on. This continues until one writer stands at the top as the winner!

I was actually part of Brigit's Flame on LJ, but I kind of just disappeared, so I've been anxious as to whether or not I should return. I decided that I definitely will make an appearance here, since everyone was so kind to me on BF, and plus, they're really good at getting lazy procrastinators like me writing! The community is active, fun, and dedicated, so I give this my double recommendation!

fic_promptly is a fandom community based on requesting and filling prompts. I know, I'm actually interested in a fandom community for once, huh? What intrigues me about this place is the idea - giving and getting, filling and receiving... I really like the idea! There's a huge variety of different people who are interested in different fandoms, so even someone like me who's out of the loop when it comes to just about everything can find something to write about. They're really organized when it comes to archiving lonely prompts that still needs fills too, so if you're ever itching to write something and don't know what to focus on, this is a pretty interesting place to stop by.

origfic_bingo GRRRAAWH, I'm so mad that I just found out about this place recently, because let me tell you, this place looks awesome. Basically, once you ask for a bingo card, they'll randomly draw prompts from their database and give you a bingo card full of writing prompts! You can fill one or two line, or even do a blackout, it's totally up to you! However, you can only sign up for cards on the beginning of the month... Man, I can't want 'till November!