Never Use Java Script or Java programming language it blocks meta crawlers the best sites are HTML. Java is also slow and can make your rank lower due to performance. Flash is another problem don’t imbed your text inside of flash code the meta crawlers will have hard time reading the information and may miss content. Don’t use programs like Microsoft Paint or Photoshop to design hole pages Search Engines can’t read text built into images. Frames are not a great tag to use if you want to embed information into your site use the HTML embed tag instead of the frame tag.