Tumblr
Is It Any Good?
Though some might pick Tumblr over Facebook or MySpace, it doesn't really compete in that space. It's more of a cross between a blog and Twitter. Think of it as a superblog, a streaming scrapbook of text, photos, videos and audio clips. The lack of a commenting feature, the oldest blog tool in the world, is rather annoying. But the look is sleek and the features Tumblr does have are often inspired; take Radar, a site search tool that visually displays results as a collage of text and photo snippets. Tumblr promises good, naughty fun the under-30 crowd, but parents should think twice about letting minors join.

Become a member and get recommendations from other parents based on your child's age.