Writing is a very individual act, and every writer needs to find the resources and tools that work for them. Here are a few that have worked for me.
Odyssey Writing Workshop
Odyssey is a six-week, intensive writing workshop for budding writers of fantasy, science fiction, and horror. Highly recommended!
Pennwriters Inc.
Pennwriters provides encouragement and resources to writers of all kinds in Pennsylvania and beyond.
Science Fiction & Fantasy Writers of America
SFWA is the professional organization for writers of science fiction and fantasy, providing education and support.