Ideas for Seo Tools

Can any one give me any ideas for more seo tools here is what I have so far on my site.


prdirectorylistcooom/seo_tools/




If you have any ideas please let me know where I can find a script for your idea.
Thank you for any input.

Google Adwords as an important tool for keywords research. Effective use of adwords will help a lot in getting more sales with lower costs.