Google Webmaster Guidelines

• Provide short, useful and informative content.
• If the sitemap page has more than 100 links partition into separate pages.
• Site map must be very clear that every page should be reachable in a static text link.
• Rather than image representation, text specifications are better.
• Title and alt content should be relevant to the page.
• Avoid broken links
• If you are using dynamic pages then pass short parameters orelse convert it as static page using mod-rewrite tool.
• Search Engine feels difficult to crawl on some features such as Javascript, Cookies, Session ID, Frames, Flash and DHTML.
• Robots.txt file tells the search engine to crawl or not to crawl.
• Make sure that the site fits in all browser without any compatability.
• Designing a site in user friendly manner is the best.
• Avoid using cloaking pages.
• Links to web spammers or bad neighborhoods on the web is not advisable.
• Avoid hidden text or link
• Duplicate content will degrade the site quality.
• Title,Keywords and description should be relevant to the page.
• Creating pages using phishing or other badware is not advisable.