Pacific Systems Design Technologies (PSDT) - On-site Perl programming classes taught by author Peter J. Scott. Perl software development and consulting also available. Perl Training Israel - Training, consulting and development services dedicated to Perl. Courses for beginners and advanced programmers and on specialized subjects. GBdirect Perl Training Courses - A wide range of Perl training courses, including general programming, advanced programming, system administration and web development. Based in the United Kingdom. Perl Training Australia - Professional Perl training and consulting services. Many course notes freely available on-line. Includes courses written and presented by Damian Conway, author of "Object Oriented Perl". Directory of Perl Training Companies - A collection of Perl Training companies indexed by country. Hands On Technology Transfer, Inc. (HOTT) - Offers instructor-led, hands on Perl instruction across the United States and Canada. LinuxCertified, Inc. - Provide public and on-site Perl training (introductory and advanced). Perl Training from Stonehenge - Information about on-site and open-enrollment Perl training, led by Perl author and columnist Randal Schwartz. Perl Training Courses - Introductory and advanced perl programming courses. By PTR Associates Ltd. Aghreni Technologies - Open source LAMP development training, including certification for Linux, Perl, PHP, Java, and Ruby on Rails. Onsight - Instructor-led, hands-on Perl training. Founded by James Lee, author of "Beginning Perl, 2nd Ed." Includes Apache Tomcat administration, Linux C, CGI, XML, Perl, PHP, Python, JavaScript, and Tcl/Tk.