I’m building a website that requires HTML5 features in order to run. If the features are not present in the browser we display a message to the user that they need to upgrade their browser in order to fully view the content.
What I would like to do is provide a link to a site with some information on what HTML5 is and what browsers support it, etc.
We’d prefer not have to build out our HTML5 information pages and just link to something “official” instead. Similar to the “Go get Flash” link (to http://get.adobe.com/flashplayer/) that is usually used to direct the user to Adobe if Flash isn’t present.
Does such a site exist?
Try the API from html5please.com . It will show a message if the HTML5 features your site requires are unavailable on the user’s browser and give them links to where they can download a browser that supports those features.
The message is configurable, but can look like this:

http://api.html5please.com/
These are some websites that may help explain the need to upgrade your browser: