http://www.webpop.com/blog/posts/building-a-scalable-cms-on-the-rackspace-cloud
Interesting article on how webpop built their infrastructure on Rackspace's cloud. Includes links to a few useful tools (chef, wormly, new relic, nagios, ganglia, and others).
http://nuts-and-bolts-of-cakephp.com/2012/07/18/cakephp-mongodb-introduction/
Useful intro to using MongoDB with CakePHP. Works quite nicely, load the plugin, specify your model should use Mongo, and boom, you're in business.
http://square.github.com/cube/
Cube is an open-source system for visualizing time series data, built on MongoDB, Node and D3.
https://github.com/ichikaway/cakephp-mongodb
The CakePHP MongoDB plugin. Include the plugin, create a model, flag it to be sent to Mongo, and boom, your'e in business. Simple, elegant.
http://apptob.org/
Scripts to auto install node.js on Ubuntu. Includes a few handy dependencies, etc. Neat.