For most people focusing on Organic SEO traffic, having your keywords in your meta titles and descriptions is a no brainer. But there’s a lot more that goes into effectively using meta titles and descriptions on your sites, and I want to take a little time to go into the theory behind how to make effective meta titles and descriptions that can turn into more traffic and conversions for your sites.
According to SEOMoz, having your keywords in your meta title (and description) is the 4th most important thing you can do to help with your rankings. This is something I definitely agree with, but there is also the human side of why you should focus on these elements that I really want to cover. Your meta tags are your mini sales force on Google, and you need more than just keywords to get increased traffic.