With so many changes to Google, it can be hard to tell what makes good SEO copywriting.

There was a time when keyword density was the key to SEO copywriting success. Then came the day of the backlink (still in existence).

With so many ongoing changes to Google’s much feared and praised algorithm, it is always hard to tell what kind of copy will land your page in the top spot, and what will have you scraping the bowels of Google’s tenth page in search of light.

Luckily, the folks at ContentVerve have put together an excellent infographic detailing the features of high-quality SEO-friendly copy (at least, so far in 2013).

Among the great tips to note when drafting your content with SEO in mind are the social implications of search today. It is not secret that Google+ weighs heavily in search rankings on Google. After all, Google have described themselves as a social company, and their changes have concreted that statement.

Take a look at these ten tips and let us know which one (or ones) you think is most important to SEO success. Tell us in the comments below or on Twitter!