Here are 10 to keep in mind:

1. Do not utilize frames.
Why would you want to use frames if SEO is important? Dont risk confusing the search engine spiders, which happens commonly with frameset sites. Sure, you may write scripts or adjust the content to work within frames, but you most definately have better things to do with that measure and energy.

2. Dont make use of Flash.
Everyone agrees--Flash looks awesome. But it also slows down the user acquired skill and Flash makes it tough to get ranked. The Flash future looks bright for the ability of search engines to read some keywords, but what sizeably effective will this serve if site pages lack visible, readable writing ?

3. Do not skimp on title tags.
Why would you simply call a page About Us in the title tag when this meta data occupies prime SEO real estate? Always incorporate workable search phrases that reflect the content within name tags.

4. Do not overstuff name tags.
Limit titles to 70 characters, with commas between phrases in EVERY title tag; utilize fewer characters on pages with limited content.

5. Dont bury text.
Design fairly often gets in the way of Text. Make sure your visible text is located high on the page.

6. Do not use graphics as page headers.
Graphic headers are a waste of space, and thus of instant, when it comes to SEO. Use text as page headers and support them by utilizing strategic keywords - in the header, after the header or below the header.

7. Dont make use of the wrong words.
Website owners love one-word search terms because they seem to get lots of visitors . The reality is that only a fraction of Internet users entering a broad search word want what you have to offer. Go for search terms using two, three or four words that will help visitors qualify their interests.

8. Do not ignore link building.
Hunt down links from other websites that have content and categories that relate to what you offer. If you sell sweaters, find a specialty guide about sweaters or a portal about clothing.

9. Dont overwhelm your pages with keywords.
You might not write the identical keyword in succession 10 times, but you might build the error of too much repetition. Mention your strategic search term several times throughout the page, but promise yourself not to force its use too much.

10. Dont make use of long URLs.
If you make use of a database to maintain the web page , you might finish up with long URLs with several session IDs and parameters that produce many question marks and equal signs. These lengthy URLs can hinder search engines from properly indexing the pages. Work with your developer so as to limit them or to remove them altogether as much as is possible.