Tucows/Tukids
Lots of free educational software to download

Owl and Mouse Educational Software
Nice map games and a castle to print and build

The Kid's Domain
Many free downloadable programs and demos arranged by age group and topic

Thinks.com
Freeware and shareware puzzles and thinking games to download. Also has online puzzles and games to play.

Free-CDSoftware.com
"Free" full-version software; you pay $7.50 per title for shipping and handling.

ArcaMax
Discounted software, free shipping and handling within the U.S.

Visit to an Ocean Planet
Free CD on ocean topography

Edumatch.com
Searchable database of software titles

Smart eStore
"Free" software to order; you pay $3.95 per title for shipping and handling.