Twitter for websites lets you integrate individual tweets and timelines right in your website or application. These tweets and timelines can display media, including photos, videos and article summaries. They are also fully interactive, allowing readers to interact with them just like on Twitter.com
As announced on the Flickr Blog, Flickr has launched a new website for developers: Flickr Code. And besides announcing the new site they've both a) given interesting details on just how much API traffic they do each day (see below), and b) they announced they're open sourcing Flickr Uploadr, the cross-platform (Windows and OS X) desktop tool for uploading photos to Flickr.