You can check them out for free, but it is a lot of curriculum in one place.

http://www.enchantedlearning.com/

Computer software; just pay a nominal fee for shipping.

Some software free, others at a much reduced price.

http://www.planetcdrom.com/free-homeschool/

Educational games.

http://www.educationallearninggames.com/educational-board-games.asp

Weather/Meteorology (the weather dude).

http://www.wxdude.com

Astronomy

http://starchild.gsfc.nasa.gov/docs/star…

http://www.kidsastronomy.com/

Mr. Donn’s history sire – unit studies.

http://www.members.aol.com/don………

Free weekly tips, worksheets,lesson plans, resources , and curriculum.

http://www.homeschoolfreestuff…

http://about.com/education/

http://www.freeworksheets.com/

http://teacher.scholastic.com/

http://www.davis.k12.ut.us/ets/Wwwsites.htm

http://www.lethsd.ab.ca/mmh/games/top100.htm

Math:

http://www.tlsbooks.com/mathworksheets.h…

http://www.mathsisfun.com/worksheets/ind…

http://www.algebra.com

http://www.coolmath.com/

http://www.coolmathalgebra.com/……

http://www.coolmath4kids.com/

http://www.edina.k12.mn.us/creekvalley/staffdev/Internet%20Sites/studentsites.htm

http://www.rainforestmaths.com/

Geography

http://www.dltk-kids.com/world

http://www.dltk-kids.com

http://www.dltk-kids.com/color………

http://www.sheppardsoftware.com/Geography.htm

http://members.aol.com/bowermanb/games.html

http://www.nationalgeographic.com/kids/games/#geogames

http://www.weeklyreader.com/kids/games/geography.asp

Typing-keyboarding

http://www.auntlee.com/easytyp………

http://www.bbc.co.uk/schools/typing/

Other:

http://www.funbrain.com/

http://www.brainpopjr.com/

http://www.iknowthat.com/

http://www.kidzone.ws/

http://kidsites.com/

http://www.spellingtime.com/

http://www.woodlands-junior.kent.sch.uk/coolchild.html

http://www.internet4classrooms.com/month2month.htm

http://www.extremescience.com/

This is our first year of homeschooling. We are using http://www.time4learning.com for my sons 1rst grade homeschool curriculum. I love it and he loves it, so it’s a great thing. It covers language arts, math, science, and social studies.

Since you are looking for third grade, you would want to check out this link;

http://www.time4learning.com/education/third_grade.shtml

They have free third grade lessons etc here;

http://www.time4learning.com/start/index.htm

I really can’t say enough great things about the program. It’s $19.95 a month. There is a parents area with progress reports etc. The lessons are multi-media and very interactive, so your child is going to learn. You can login yourself and make sure the lessons are getting finished. The progress reports can be documentation of the education he is getting.

www.OBDK.com

www.krampf.com

www.funology.com

www.multiplication.com

www.polytechnic.org (US History)

www.escapefromknab.com

Enjoy

http://teacherweb.com/MA/FraminghamStateCollege/STrombley/HTMLPage8.stm

http://www.k12.com/

These are a few I found online, hope they help.

Good Luck!