>Hi,
>
>I bought a book on HTML5 and as I read it and learn some new tags I want to start incorporating them into my web site (I made it in ASP.NET so it is easy enough to "plug" in the new code). My question is, how wide spread is now support for HTML5? That is, how likely people who look at my site will have problems seeing stuff before their browser does not support HTML5?

HTML5 eventually will really become a standard, and most browsers should offer pretty solid support for it.

Currently a number of browsers claim support, but I'm pretty sceptical since HTML5 is not a finished standard.

I'm seeing it referred to more and more, but I think it is being used as a panacea when people want to talk about cross platform compatibility rather than something concrete.

Personally I'm not pushing into anything HTML5 specific at least until it becomes a standard and browser makers have a chance to come up releases specific to the standard (ie not anytime soon).