Entourage is an email client developed by Microsoft for Mac OS. In August 2009, Microsoft announced the end of support for Entourage in place of a new Outlook for Mac that will be released in late 2010. Because of this announcement, Gist has decided not to build an email plug-in for Microsoft Entourage.  You can export your existing Entourage contacts as a CSV file and upload this file into Gist. Once Outlook for Mac is released, we will be evaluating this platform for a future Gist Release.