You can click on the Google or Yahoo buttons to sign-in with these identity providers,
or you just type your identity uri and click on the little login button.
because of the class="sponsor"
my current version of adblock does not hide the class="sponsor". it is adblock plus 1.3.9
Ticket #1382467 - latest update on 2011/08/22, created on 2010/12/07 by Nicolas Chauvat