As search engines cannot read images, Alt Tags are used as a way of giving more information to the search engines about them. Its a great way to include your primary and secondary keywords in another place onpage but you should not get carried away as the over zealous use of keywords may mean you are flagged for keyword-spamming.

The image below is an example of how we use the Alt Tag on our main banner image: Hover your mouse over it to see how this works.

By using the Alt Tag 'SEO Help Image' on our banner, the search engines will see it as having some more value.

If you have more images on your page then use your secondary keywords in their Alt Tags but change the variations of what you call them, ie: Organic SEO Image, Search Engine Optimization Graphic etc..

Here is how you can add an Alt Tag to your image. Remember to include image, graphic or logo after the keyword so as to not be penalized.

Go to Step 10 - Using Header Tags

SEO Self Help recommends SEO Elite for successful search engine optimization campaigns.