I've looked back to this article several times and it's always been helpful to me. Also a good article to refer new members to when they get a "strange looking" egg!
I have been wondering why my 6 month old White Leghorn layed a couple weird shaped eggs. Now I know! This is a great source of info about eggs, especially for new flock owners!
It is great that there are pictures accompanying the information! This is also "must have" information for this site... especially with newbies like me looking for information! Thanks!