Many of you have expressed confusion over how to leave comments and I think the biggest thing to note here is that you cant comment on the blog when reading through yoru email. You have to go to the actual website which is www.thegrizasonline.com to leave comments, vote in polls, see all the graphics, pics etc.
Anyway here is a video that sort of walks you through how to leave comments. You can either sign in if you have a gmail account and it will have your name or you can comment anonymously and just type your name after your comment..