Curriculum Standards
Tennessee Curriculum - we live here so most of my plans will follow this for a standard.
World Book Encyclopedia K-12 Typical Course of Study - can be a slow site but has very good information for more than just the course of study.
Pre Kindergarten Standards - Lists for 2, 3 and 4 year olds by Michele Lewis.
Favorite on-line lesson plan sites
enchanted learning - this is a pay site but it is not expensive and has some great resources for Pre-K to about 3rd grade.
ABC Teach - great pre-school to about 2nd grade stuff
Lapbooks and Notebooks
homeschoolestore (name to change soon)
Let's Try Lapbooking with Cindy Rushton
Lapbooking by Jimmie (lots of nice links)
Mini Office (really neat idea for all the learning helpers)