In some cases, I'm asked to do more than the writing. When it comes to SEO, keyword research, website design, and graphic art, some clients are best served by specialists in these fields. The listed resources are all valuable partners in your bid to get your website up, running, and making you money.
First: Check out CatalystBlogger for up-to-date writing-related tips and topics.
DIY Keyword Research:
SEO Book Keyword Suggestion Tool
Google Keyword Tool
Keyword Discovery
WordTracker
Professional Keyword Research:
SEOResearch Labs
Do-It-Yourself SEO:
SEOBook (not free, but highly recommended)
Beginner's Guide to SEO (free)
SEO Professionals:
GSINC
Impact-Direct
RankSmart
Note: I am not involved in affiliate partnerships with any of the businesses represented here. This list is completely organic, and is based on my personal experience and research.