This list will mostly focus on sex blog prompts just because EF is an adult community. Other non-sex blog prompts exist including: Writing Prompts, When Your Screen is Blank..., One Minute Writer. Some sex blog prompt websites are: Submissive Blog Prompts, Dangerous Lilly's Blog Prompts, Flash Fiction Friday.
Please, please, PLEASE DO NOT post off-topic things on this forum thread. Blog prompts only. I want this to be easy to navigate and use and a bunch of "this is helpful!" posts will just convoluted it. It's great that the post is helpful, but it'll stay the most helpful if we keep it to blog prompts only. If you have a blog prompt idea, though, it'd be very helpful to others to post here!