diberry - 3:43 pm on May 9, 2013 (gmt 0)
So which meta themes are useful these days? And I don't just mean for Google SEO - for example, my understanding is that Bing prefers you include the meta description tag, and in any case (when the engines use it) using it can give you better snippets than the ones the engines auto-generate.
Below is my understanding, but I'd love feedback from others:
"language" - essential
"author" - I've read conflicting accounts on this one. I believe it can't hurt, but may not help?
"description" - see what I said above
"publisher" - I really don't understand this one
"keywords" - no conclusive evidence Google uses it (and they say they don't) and Bing apparently uses it to detect spam, not to rank you. So, more trouble than it's worth?
I know there are plenty of others, but I think these are the more common ones.