Speaking at a keynote at SXSWi 2010 Twitter CEO Evan Williams explained how the new “highly anticipated” app platform would integrate Twitter into websites, so you could follow and tweet without having to go to Twitter itself. You will also be able to use Twitter to sign into the site…

Twitter promises that @anywhere will be simple for site owners to implement as rather than using APIs, site owners need only drop in a few lines of JavaScript.

via Twitter announces @anywhere platform | News | TechRadar UK.

This would be a great way of integrating your website into your patrons lives.