Avoiding the 5 Most Common SEO Mistakes
If you've ever visited SitePoint's Web Site Review forums, you've probably read some of the SEO reviews that are posted there, a few of which I've written. You'll notice that many of the comments in these reviews of search engine-optimized sites are quite repetitive: "Your site is beautiful, but your SEO leaves much to be desired. You've neglected X, Y, and Z. Here are some ideas to fix the problem..."
1. using a non-standard title element
2. failing to optimize image markup
3. using spider-illegible JavaScript where legible code would do
4. failing to indicate the content hierarchy using header elements
5. poor grammar and spelling
Let's look at each of these problems in turn.
Full Article here by Johnathon Smith
http://www.sitepoint.com/article/mos...n-seo-mistakes