A good feature from Gmail for bloggers!!
You could definitely like to have a look at a Gmail Lab feature called Random Signature. If you enable this Gmail Labs feature, every time you would send a mail, a link to one of your randomly selected post would get appended to the end of your signature. If the email receiver finds the title interesting and wants to read more about it, he would click the link and it could bring traffic to your website. Thus, this is a good feature that can definitely be useful to you if you wish to spread your links all over your mail contacts.