This week's Cloud Out Loud features [Kent Langley](http://twitter.com/kentlangley), Senior Director of Digital at [SolutionSet](http://www.solutionset.com/). He talks about what SolutionSet does and why they are committed to using Ruby on Rails. Tune in to hear Kent's thoughts on why Ruby isn't going away anytime soon. Kent's passions and interests lie with the significance of scalability and the importance of both vertical and horizontal scaling. We also discuss some of the new NoSQL databases out there, such as Redis, Riak and MongoDB. (There was a Hacker News post that brought this question about, which compared a few of the [popular NoSQL databases](http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-vs-redis)). Kent also touches on some of the benefits of using [Chef](http://www.opscode.com/chef/) and addresses alternatives including [Puppet](http://www.puppetlabs.com/) and [Sprinkle](https://github.com/crafterm/sprinkle). The NoSQL databases and infrastructure management tools we discuss in the podcast are just a few of many options. What are your favorite NoSQL databases? Favorite infrastructure management tools? Share your favorites and reasoning as to why in the comments below.