The SANE project website start page.

LibreTranslate is a free and open-source machine translation API that allows users to translate text between numerous languages using a web interface, and it can be downloaded for offline, self-hosted use.

Discusses putting together a Map API that lets you embed a map into your website, a data source, and ways to get around cross-domain restriction in order to create a mashup of your own.

Flickr Graph is an application that explores the social relationships inside flickr.com. It makes use of the classic attraction-repulsion algorithm for graphs.

“Roll your own search engine [Using Yahoo!’s API]. Create personal search engines using only the sources you trust.”