Create logs of pages and each page should however contain a minimum of about 200 visible words of text to maximize relevance with Google.
Create a homepage link to each and every webpage and provide easy navigation through all the pages.
Pay attention to your dynamic page URLs. Google can crawl and index dynamic pages as long as you don't have more than 2 parameters in the URL.
Check your complete site for broken links. Broken links will reduce your other pages rank as well.
Don't keep hidden text on your webpages.
Don't create alternate image spamming by putting wrong keywords.
Don't use meta tags stuffing.
Don't use frames and flash on your site. [ frames are enemy of SEO]
Don't exchange your links with black listed sites.
Don't try to fool your site visitors by using misspelled keyword.
Don't send spam emails to thousands of email IDs.
Don't use too much graphics on your site.
Don't create too many doorway pages.
Don't try to create duplicate content of pages.
Don't submit your website many times in a single search engine.
Don't use sub-directory depth more than 1-2.
Don't create too many dynamic pages. Try to convert them into static pages.
Don't bloat your pages with code.
Don't nest your pages.