Sorry, I have a blog system that I'm working on for my clients (why not use one of the myriad of other blog systems? my clients are not tech savvy in any way, the system needs to be usable by a monkey). In this blog system I will have all the basic features of a blog, (ie. articles, comments, search, rss, tags, archives etc). However some clients will want extra functionality, I want to be able to add this functionality quickly and easily. What I'd like to know is the easiest way to do this, I don't want to get too complicated Ii just want a simple 'Plugin' find, recognize and use system. Is there any articles, books or people that can educate me on this?