Make sure your keywords are used and repeated in the body of your home page. Description - Your description can be between 190 and 245 characters including punctuation. Capitalize your 1 to 3 most important words. Human directories, such as AOL and Yahoo will many times re write your description down to 70 characters, and do a poor job at that. Try to make the first sentence in your description cover all the bases and be 65 to 69 characters in length.
Every site requires slightly different tags.
You can visit Submit Corner , they provide a full explanation of how to create each tag and how they work. Below is an example of Expert Submission's META structure. Comprehensive placement utilizing state of the art META tag formation. Submittal is guaranteed. You should be deservingly proud of your site if you have followed the above steps.