This online planning system includes tracking for assignments, grades, and attendance. There is also an allowance feature and a shopping list, which can be handy. This system doesn't have a lot of bells and whistles, but is very affordable.
Printable worksheets aligned to common core standards.
This blog comes from a former English teacher, now homeschooling mom.
A library of science videos (similar in style to Bill Nye) aligned to Next Generation Science Sta
Online courses in world history and geography.
Online language program that combines computer lessons and live tutor sessions.
This company carries textbooks, workbooks and ebooks in all major subjects.