These two sets of slides were presented at the Erlang Workshop in Saskatoon on September 17, 2009.
The first set goes over the Erlang data storage modules ETS, DETS, and Mnesia. These modules are part of the Erlang library and are extremely powerful and flexible for storing data. The second set briefly outlines Mochiweb and Webmachine. Mochiweb can be used on its own as a lightweight HTTP server. Webmachine is built on top of Mochiweb providing a Web service gateway interface, ideal for building an API server.