Here's some things that work pretty well for keyword research for your fitness business:
http://labs.google.com/sets - get Kw ideas that are similar to the kw you type in
http://www.google.com/trends - see what's hot in google right now
http://www.wordtracker.com/ - many people love it, I can't stand it. (…)

Building links is one of the best strategies at this time for increasing your rankings in the search engines, especially if those are high-quality, relevant links and you're adding value to the web. (…)

You may look at this list and say to yourself "Hey, these don't look like the typical topics and resources that are on other fitness business websites!" That's because they aren't…
When everyone in an industry does the same thing that's called market incest. (…)

To run a successful health and fitness business today requires being an expert in more than one area. (…)

 
  By guest author Logan Strain
If own a local personal training business or health club and a website, you already know the challenges of trying to draw traffic from your general geographic area. (…)

 By Guest Author Logan Strain
I know you’ve already heard this one a million times, but one of the essential keys to building a high traffic website is valuable content.  Unfortunately, usually the people who explain this to you don’t take the time to explain what “valuable” means.  So for your benefit, here are the four things that make content truly valuable
1. (…)

This interview is from December of 2006, keep in mind SEO and Internet Marketing is always changing so validate any of these techniques before using them. (…)