Yahoo Mail is now allowing the "." (dot) in email addresses.  If you, like me, want your email addresses straightforward, go get your dot-email address quickly before your name is taken.  For instance, my original email address at Yahoo Mail was "jkhasson@yahoo.com", but now I can have another address called "jonathan.hasson@yahoo.com".  This is much more intuitive to me and follows the naming convention I established on my other email addresses.

Link: Get your extra Yahoo! dot address – Lifehacker.

Jonathan