Mozilla's BrowserID (single sign-on for the web) is live
A lot of questions here revolve around how this is different from OpenID and single sign-on solutions like Google Accounts or Facebook Connect. Here's a rough list (may be incomplete or inaccurate by now; while I work for Mozilla, I'm not involved in this project):<p>* federated (like OpenID)<p>* open standard (like OpenID)<p>* no passwords / no typing / no memorizing (e.g. like FB Connect)<p>* possibility of browsers providing an integrated experience (technically possible with previous solutions, but no browser has done this so far -- in the case of OpenID for a very good reason IMHO)<p>* anonymity/choice of identities (like OpenID, definitely unlike e.g. FB Connect)<p>* no exposure to identity provider (this is unlike <i>any</i> existing solutions; if you log into a site, your OpenID provide, Facebook, Google, etc. will know which site it was; not with BrowserID!)<p>Check out Dan and Ben giving a nice demo of the BrowserID user experience: <a href="http://www.youtube.com/watch?v=6x45Nt1fOMM" rel="nofollow">http://www.youtube.com/watch?v=6x45Nt1fOMM</a>. No passwords, no typing, and anonymity where desired.<p>If you're interested in the nitty gritty details, Lloyd explains the cryptographic assertions that actually let sites verify your identity: <a href="http://lloyd.io/how-browserid-works" rel="nofollow">http://lloyd.io/how-browserid-works</a><p>(EDIT: format bullet points)