I've just added the recently-released Google Translate gadget to my blog, which you can see at the top of the main page and also each post and archive page.
This means a visitor to my blog can automatically translate any page they wish into their choice of, currently 34 different languages, just by selecting the language from the dropdown. (The translation may not extend to the last part of the page for a long page like my blog's main page, but it does most of it; you can also go to an individual post's page alternatively, and translate just that.)
I used to have some auto-translation code which actually just makes use of the same Google translation mechanism behind the scenes - in fact I still have that facility, as you can see - but it was limited in the number of languages it could translate my blog into.
The shiny new Google Gadget not only is easy to add to your blog or site, but is also better in terms of the much bigger range of languages available - although the "Select Language" line is only shown in English whereas my old code at least indicates to people in their own language that a translation is available. Still, most people these days know a bit of English, so hopefully "Select Language" is enough.
I'll try it out for a little while, and then I'll probably remove the old code.