Links

Node.js nodepad tutorial
http://dailyjs.com/tags.html#lmawa

Node.js O'Reilly book
http://ofps.oreilly.com/titles/9781449398583/chap2a.html

Redis
http://redis.io/commands
https://github.com/mranney/node_redis/blob/master/README.md (node.js client)

Variable-size images for testing
http://www.placekitten.com/123/345
http://dummyimage.com/100x100/000/fff

MongoDB-PHP Tutorial
http://www.php.net/manual/en/mongo.tutorial.php

CouchDB The Definitive Guide
http://guide.couchdb.org/editions/1/en/index.html

CouchDB Interactive photo info database
http://blog.mudynamics.com/wp-content/uploads/2009/04/icouch.html