If you are into the madness that is SEO (search engine optimization), there are so many considerations and things to keep track of that it can drive you nuts. What better way than some tools to help you out?

This article posted on Linux.com, Increase page ranking with FOSS tools for SEO, is a great resource for those interested. From keyword analysis (and suggestions) to back-link tracers, this article points you to many tools you will most definitely find helpful.

One thing to keep in mind though, is these tools should be used responsibly. Designing for search engines (making the readers 2nd) is never a good idea. As the author points out in his conclusion:

You can use SEO to be honest when describing your Web site, or lie to try to get a better page rank. [...] However, [being dishonest] harms search engines and their users, and in the long run, harms the webmasters too. By fooling others, you may hurt yourself in the end.