That content is extremely important to the success of your site so make sure keywords don't appear random
. Making your site appear organized can be achieved with bulleted items within content. Search engines use all those elements that help the end user. Don't let the initial complication deter you from using SEO. Avoid the mistakes by considering all of the different ways you can make them. Not having a solid understanding the value of URL's is a mistake. Your ranking will increase with the use of focused URL. A focused URL can be leveraged to increase to the highest value. Less desirable URL's are still ranked. However using primary keywords in directory files will help you see how the search engines will favor your site. Don't ignore the power of your keywords.
You might think that by having JavaScript menus on your website, you're making it more useful. You are definitely not improving your site SEO-wise by doing this, as it cannot be read by the search engines. It's especially important to have a sitemap that the search engine spiders can crawl to find your links if you're going to use JavaScript. The simpler you make it to navigate your site, the more likely it is that the search engines will find and index your pages.
In summary, the SEO mistakes that we discussed above are only few. As you gain knowledge of the processes and progress you will notice when you reach another No-NO.