Good: Quake - cross platform, fast, clean & easy to read ~ http://www.idsoftware.com/business/techdownloads/ http://www.idsoftware.com/business/techdownloads/

Good: Quake - cross platform, fast, clean & easy to read ~ http://www.idsoftware.com/business/techdownloads/ http://www.idsoftware.com/business/techdownloads/ Bad: Sendmail - it works but is continually plagued with bugs ~ http://www.outpost9.com/exploits/sendmail.html http://www.outpost9.com/exploits/sendmail.html