Homepage: Great writing site for all grade levels and for each content area: http://writingfix.com/index.htm
Six Traits Writing Lessons (Incredible prompts and lessons on the bottom of the page): http://writingfix.com/traits_primary.htm
Writing Journals (lessons, prompts, examples, Mr. Stick lessons): http://corbettharrison.com/
Writing Across Genres Lessons: http://writingfix.com/genres.htm
Daily Writing Prompt Generator (elementary and middle school): http://corbettharrison.com/writers_notebooks.html#topics
More Great Prompts (BINGO sheet of writing prompts, content area prompts included): http://corbettharrison.com/writers_notebooks.html