A simple Perl wrapper around the Google Maps API. It allows you to easily create maps with markers, polylines and information windows. You can now look up locations around the world without having to install a local database.
Normally we'd give a brand new site a break for not immediately having an API. When it comes to the rabidly popular FourSquare, which launched in March, developers have been clamoring to build on top of the service. So, today's launch of the FourSquare API (our FourSquare API profile) is bound to be met with extreme enthusiasm.
Twitter has added alt text support to Twitter Cards and the Twitter REST API. Alt text is an important piece of metadata for those who are visually impaired as screen readers and browsers use alt text to explain to visually impaired users the content of each image on a web page.