SEO - what is NOT recommended

Flash and shockwave - spiders do not pick up these files

Image only sites - spiders do not pick up images

Image maps - spiders cannot read image maps.
Do not use them on your home page or critical pages.

Frames - only one page can be titled (titling is critical in search rankings)
- If the spider cannot read the complete page (because of the frames), it will not be indexed properly.

- Some spiders may not even read a frames web site

Password protected pages – spiders cannot enter password protected pages

PDF files - can be problematic for spiders. Although some search engines can index them, the pages must be interpreted into HTML and can lose much of their content.
- place PDFs lower down in your site

Dynamic pages - spiders cannot index some content on pages using ASP, CGI or other dynamic languages.
- Make sure important pages are HTML, no dynamically generated content.

Drop down menus – spiders cannot read them