search engine rankings and similar publication-counting to determine language popularity. , it shows Scala in 31st place. In this ranking, Scala is ahead of Haskell (38th) and Erlang, but below Go (14th), Swift (15th), and Perl (19th). The RedMonk Programming Language Rankings, which establishes rankings based on the number of GitHub projects and questions asked on Stack Overflow, ranks Scala 14th. Here, Scala is placed inside a second-tier group of languages–ahead of Go, PowerShell, and Haskell, and behind Swift, Objective-C, Typescript, and R. In the 2018 edition of the State of Java survey, which collected data from 5160 developers on various Java-related topics, Scala places third in terms of use of alternative languages on the JVM. Relative to the prior year's edition of the survey, Scala's use among alternative JVM languages fell from 28.4% to 21.5%, overtaken by Kotlin, which rose from 11.4% in 2017 to 28.8% in 2018. Back in 2013, when Scala was in version 2.10, the ThoughtWorks Technology Radar, which is an opinion based biannual report of a group of senior technologists, recommended Scala adoption in its languages and frameworks category. In July 2014, this assessment was made more specific and now refers to a “Scala, the good parts”, which is described as “To successfully use Scala, you need to research the language and have a very strong opinion on which parts are right for you, creating your own definition of Scala, the good parts.”. Companies In April 2009, Twitter announced that it had switched large portions of its backend from Ruby to Scala and intended to convert the rest. Gilt uses Scala and Play Framework. Foursquare uses Scala and Lift. Coursera uses Scala and Play Framework. Apple Inc. uses Scala in certain teams, along with Java and the Play framework. The Guardian newspaper's high-traffic website guardian.co.uk announced in April 2011 that it was switching from Java to Scala. The New York Times revealed in 2014 that its internal content management system Blackbeard is built using Scala, Akka, and Play. The Huffington Post newspaper started to employ Scala as part of its content delivery system Athena in 2013. Swiss bank UBS approved Scala for general production use. LinkedIn uses the Scalatra microframework to power its Signal API. Meetup uses Unfiltered toolkit for real-time APIs. Remember the Milk uses Unfiltered toolkit, Scala and Akka for public API and real-time updates. Verizon seeking to make "a next-generation framework" using