We choose for development way most powerful upcoming server software and tools.
First of all this is LAMP (Linux, Apache, MySQL and PHP) technology. We also work with tool which makes PHP as much powerfully tool for any web applications. This is JavaScript. And also technology based on crossing of PHP and JavaScript, AJAX technology which place possibilities of web application near with Desktop applications like Office applications, Planners, calculation tables etc. And all of this it`s future of life and this future comes faster than much people expected. Also we use frameworks which we made and which made other teams based on open licenses, powerful tool SMARTY gives much possibilities to redesign sites which we created without PHP programmers and use only web designer with SMARTY design skills.
All technologies can`t be put in short description because list of names, I think, too dull and not bring any result, and also this list changes in time line something appear and something gone, because this is progress and it newer stopped. Also we work with much of open license software based on LAMP technologies like Drupal, Joomla, Nuke portal etc. here I tell only about most popular CMS which used, but much of this appear, move to popularity peak and loose this popularity, and new become. And also each open software have it own positives and negatives. Sometimes better use open software, sometimes need create something unique to protect code from eyes of other people which add it more protect. In each situation decisions may vary, I think not "may vary", because it "must vary" depends on wants and needs.