Metadata: seven tips for writing better keywords is an article by Gerry McGovern that offers suggestions for writing better keywords. By the looks of things we are on the cusp of an era that might have people who post content on websites actually creating the content with search engines in mind. After all, if your writing can’t be found–and more and more it seems as though it will be found via a search engine–then it’s not much good to anyone. Still you wonder how much writing styles will change if we begin to overvalue the search engines assessment of our writing…
From the article:
The shift in how search engines treat keywords is significant. They tend to ignore the keyword meta tag and rather look for keywords in the actual page content. This means that you need to figure out your keywords before you write any content. Then, you include them throughout your content, particularly in headings and summaries.

