Writing
 
Super Teacher Worksheets
Worksheets for all grade levels and various subject areas
http://www.superteacherworksheets.com/

 
SEN Teacher
Teaching aides and handouts for students with special needs
 
Journal Buddies
Various writing prompts 
 
Write Source
Writing Prompts
  
Tooter 4 Kids
More Writing Prompts
 
Journal Ideas
Writing Prompts
 
Super Teacher Worksheets
Various math, reading, handwriting, and grammar worksheets along with spelling lists
 
Story It
Picture prompt story starters
 
Writing Fix
Story prompt generator
 
Scholastic
Story prompt generator and handouts
 
A to Z Teacher Stuff
Writing prompts, various activities for many grade levels and subject areas, printable certificates, and much more
 
First School
Preschool and kindergarten reading, math, handwriting, tracing and other activities
 
Kid Zone
Phonic practice worksheets, writing, and tracing handouts, coloring pages
 
Hubbarbs Cupboard
Sight word books, ABC activities, guided reading, math, and writing activities
 
TLS Books
Various subject and skill areas for all grades, printable worksheets, and coloring pages
 
Enchanted Learning
Various language activities and descriptions of punctuation marks