Well for school or projects I recommend the following:
glogster
symbaloo
voki
and for games (learning games) I recommend:
Coolmath4kids
http://trololololololololololo.com/
Puzzlepirates is an online MMO where you have to do different puzzles to get new ships and things.
My fave website is fantage
kids world
http://www.kiddieskingdom.info/
Webkinz and Poptropica are some good sites
some good kid web sites are... moviestarplanet.com animaljam.com and roblox.com
Here are some good kids' websites that I know of: clubpenguin.com disneychannel.com marapets.com moshimonsters.com nickelodeon.com pbskids.org whyville.com
Y8.com or y3.com or gamesbox.com and/or miniclip.com
Webkinz.com, babydow.com, pixiehollow.com, superpokepets.com, and howrse.com are all good Web sites for kids.
There's a heavily filtered roleplaying forum on moshimonsters.com. Some kids roleplay on sites like Animal Jam and Toontown, but they aren't as active. There's a good roleplay forum on kidzworld.com.
These are all good websites shown underneath i no that because i play on them my self -gogirlsgames.com -habbo.co.uk -gamesgames.com -miniclip -club penguin - moshi monsters -super secret -muchi games -stardoll -horseland by Isabella Manning aged 10 email me if you think these websites are good isabellam@hotmail.co.uk
Here are some popular sites:NeopetsIcepetsPowerPetsWebkinzSee related links below.
nick.com is good club peguin rules moshimonsters cartoon network disney channel disneyxd and poptropica