useful links for unicode

I had to do some fiddling around with putting unicode characters in html text. Basically, I wanted to put the √ and ✗ characters in the html doc I was prepearing. I found these links useful

• Unicode Characters and HTML Numeric Character References - check out the Unicode Character To HTML Numeric Character Reference Converter tool on that page. It is useful when you have some text (possibly copied from a web page or another document) and you want to covert this text into HTML numeric character references, so that you can insert it into some HTML you want to create or edit.
• Unicode and Multilingual Support in HTML, Fonts, Web Browsers and Other Applications - A big reference of characters