This is still 'SEO 1.0' stuff. If you have something to sell, i.e. an e-commerce site, or if you have a recipe, or if you have a large collection of flora and fauna, the quickest win is to use semantic markup - 'SEO 2.0'. Let The Search Engine (Google) know what is description, title, price, currency, size, weight and so on with semantic markup tags and you are presenting The Search Engine with information that can be made sense of. Otherwise it is just throwing more needles in the haystack.