vBulletin is a proprietary Internet forum software package sold by MH Sub I, LLC doing business as vBulletin (formerly Jelsoft Enterprises and vBulletin Solutions). It is written in PHP and uses a MySQL database server. Similar products include XenForo, WordPress, Joomla, Drupal, MyBB, and phpBB.
RhymeZone is a website and app (IOS, Android) owned and operated by Datamuse, created in 1996, that allows the user to search for rhymes, synonyms and definitions. RhymeZone also has an app for Amazon Alexa and an add-on for Google Docs.