http://www.internet4classrooms.com/skills-2nd-langbuilders.htm
http://www.eduplace.com/kids/hme/k_5/quizzes/
This website is a combination of everything (Phonics, Comprehension, Reading, etc.)
http://www.newton.k12.ks.us/tech/second_grade_internet_links1.htm
http://www.abcya.com/second_grade_computers.htm
Spelling Practice
http://www.abcya.com/second_grade_computers.htm