Iterator : powerful and under utilized pattern

Iterator is one of my favorite design pattern. I have used in almost all projects and in various ways. I have been thinking of writing a blog on 'Iterator design pattern'. Recently (on 4th Dec 2013) I did webinar on the Iterator pattern.  The links are given below

1. Iterator – a powerful but under-appreciated pattern - Webinar on Techgig.
   You can watch the video on youtube (video)
   
   
   
2. I have published the slides on Slideshare. You get the presentation here.