Whether you have outsourced your SEO campaign or are performing it in-house, here is a quick list on how to lose ROI and create diminishing returns for your business. Why 13? Well, because that’s your lucky number!
1. Make and upload site changes using old un-optimized backup files rather than the more recent optimized page files. And forget to tell your SEO you have done so.
2. Upload a malformed robots.txt file that tells the search engines that all your pages are disallowed from being spidered and indexed.
3. Require visitors to login personal information before viewing your site.
4. Require visitors to tell you where they came from before viewing your site. This is especially effective if there are both right and wrong answers.
5. Redevelop your back-end system yearly that causes well ranking URLs to change.
6. Change all the URLs of your site to make them more “keyword friendly”. This works wonders with well established sites with many pages that are ranking well.
7. Don’t 301 redirect your old pages to the new ones.
8. Use your really important keywords really often so your really important visitors are really able to see whatâ€™s really important on the page and the search engines really know what your really important page is about. Don’t be shy because this is really important. Really.
9. Make sure your contact forms gather as much information as possible. You never know when you might need their date of birth, annual household income, names and ages of their children, their home, business and cell phone numbers, my space page and instant messenger name(s).
10. Make sure that your check out process has a lot of extra steps involved, and don’t let your visitors know where they are in the process. Just keep them clicking from one form to the next. Here is a my suggested checkout path: cart > product verification > login option > purchase confirmation > select shipping method > new total with shipping and tax > name and address > shipping address > credit card information > total order verification > submit.
11. Spend your resources going after the broad high-traffic phrases. Don’t worry about sales, traffic is what counts.
12. Use a lot of flash animations, bright contrasting colors and excessively large images.
13. Place Google ads right on your product pages. Those few cents you get for each click really add up and you don’t have to worry about shipping anything.
(this article was taken from searchengineguide.com)