Here's a forgotten (sometimes unknown) source of usefull keywords...

[Colin Evans]

Your own web stats.

You will find a list of long tail keywords people have typed into the search engines which have led them to your site. These keywords often don't get much traffic and are hardly ever found by keyword tools.

You might ask: "People are already getting to my main site through these keywords, so where's the value?"

In your supporting sites/articles etc. - By adding new supporting content which incorporates these keywords you can sometimes dominate the long tail results page with your blog posts, articles, lenses etc.

In each of these supporting pages you link to pages on your main site which target higher value keywords.

It's a fairly simple way to increase the number of relevant backlinks with links you know are going to send a little more traffic, but more importantly give your main pages a boost in the search engine results.

[Colin Evans]

Hi Tina,

I use AWStats from cPanel (it shows all the keywords that have been used to find your site on the SE's) - at the end of each month I copy and paste all the keywords into a spreadsheet for each site.

[obj111]

Good point. Log files are a great source of information.