Today I have found very useful thing on digg.com. This thing is BrowserBook - colorful 16-pages booklet with compilation of all client-side web-technologies, such as Colour Palette, Font Characters, XHTML Tags, CSS Styles, JavaScript syntax and functions, DOM API and Regular expressions manual.

I think, this book is really Must Have for all of Web-developers, HTML-editors and other people, that needs to remember all of that complex web-technologies!