Really good article on using tags for generating traffic to your articles. When tags are used in conjunction with optimized titles and title tags in images, they go a long way towards increasing traffic.

My take on the tag optimization is to generally stick to a consistent strategy. If your posts are usually about health and fitness, adopt a 4 to 1 plan. Four tags that are highly relevant and one tag that caters to a wide audience.

Since my niche happens to be content marketing, I seem to be having good luck with this now that I've adopted this method.