Presentation: An introduction to node.js and Riak
While most of Francisco Treacy’s (@frank06) “An Introduction to node.js and Riak” presentation is focusing on the advantages of event-based architectures, it also shows how to integrate node.js and Riak using ☞ riak-js, a node.js library for Riak that takes advantage of the friendly HTTP-based Riak protocol
There are a couple of other interesting things that can be learned from this slide deck. For example the cost of I/O:

simply described afterwards:
In other words, reaching RAM is like going from here to the Red Light District. Accessing the network is like going to the moon.
Update: thanks to a comment on this post, here is what Googler Jeff Dean presented on the cost of I/O:
But as Frank mentions, there are some risks while working with cutting-edge technologies:
- Cutting-edge technologies are not bug-free
- Riak still has some rough edges (some in terms of performance)
- node.js is approaching its first stable version
- asynchronous JS code can get “boomerang-shaped”
