This post from Jeremy Bowman and the Safari Flow blog is from earlier in the year, but I thought it was a creative and highly useful tutorial for building API docs with Sphinx that was worth highlighting.
According to the latest rankings from DB-engines.com, Cassandra just edged Teradata in the overall database rankings for the 10th spot. The jump was probably caused by the lead-up to the Cassandra 2.0 release.
With the use of implicits in Scala you can define custom conversions that are applied implicitly by the Scala compiler. Implicits in Scala go beyond what conversion operators in other languages make possible.