IXL.com offers math practice for grade levels K-6. First-time visitors can practice any of our more than 1,000 math skills for free, but paid membership also offers detailed individual student assessment (incl. in relation to state standards in the US), progress tracking, goal-setting and awards for students as they master skills.
(ROMS) | Cost: USD $9.95/month, or $79 per annum | Requires: Internet connection | For further info...

Ever wanted to type or sketch something quickly right there, on the Mac OS desktop, without first opening an application for it? Well, Conjure (now at v.4.1) offers you just that. You can do more than type or sketch, too, but actually brainstorm with mind maps. The new version is Snow Leopard compatible and offers new backdrops, a Knife tool "for cutting anything", and more. See the company's website for video demonstrations and a free trial version.
(Macintouch) | Cost: US$25 | Requires: MacOS X 10.5+ | For further info...

With many children now boasting their own iPod touch devices, the issue of protective browsing is no longer limited to the desktop computer at home or at school. To ensure they avoid unsavory websites while browsing on the move, parents can now install iWonder Surf. Based on the Safari Web browser.This allows you to filter site traffic, and even find out if your child is surfing the Web during school hours, and view traffic and control Web surfing permissions, or even disable its Web access, from anywhere without having to have physical access to the device.
(Source: iPhone Central) | Cost: US$15 | Requires: iPhone or iPod Touch, iPhone v2.2 software | For further info...