Try to keep the length to 4 words or less. Using a keyword in your URL will improve relevancy on most search engines. Include misspelled words in your keywords. Many web surfers misspell terms in their searches, so include variations of important keywords with common misspellings. Use META tags.
Most search engines give extra weight to keywords that appear in meta tags.
Use the same keywords in both the META tags and the body of your document. This will help prevent search engines from interpreting your site as spamming certain keywords. Many search engines won't follow refresh tags to load the next document. If your site uses a splash page that opens the main home page, submit your main home page instead of the splash page. Shuffle the sequence of META tag keywords across different pages and in ALT tags.