There are so many resources on the Internet that can tell you how to perform SEO on the html code but here are a few good tools that NetSearch Direct utilizes on every SEO campaign.
- Keyword Research Tools (Adwords Keyword Tool and Keyword Discovery)
- Track Rankings Tools (Webposition and SEO Book Tools)
- Quick website information (SEOQuake)
- Yahoo linkdomain search to find out competitor backlinks, also good link tools at SEOMOZ/linkscape
- Patience