I find it interesting that you talked about nutrition supplements for athletes. I am very close to launching such a product for enhancing aerobic exercise performance in women (ie. improved times in a 3 mile run).. The product contains no stimulants or exotic herbs. In fact three of the five ingredients are well known minerals, but in forms not found in most multi-vitamin-mineral supplements. The research behind the product comes from me. The credibility behind the research is that I am a professor of human nutrition with over 100 research papers. Now, the trick will be to use my connections and credibility in a business savvy way.
Yahoo!'s Pay-Per-Plick (PPC) Program shows paid ads at the top and right of the results pages. websites that show up here bid on keyword phrases and pay Yahoo!® a small fee each time the ad is clicked on. The more you bid per phrase the higher your ad will appear on the results page. Yahoo! PPC is a great way to help drive traffic quickly to your website. You can set a daily budget. When you max out your budget, Yahoo! will pull your ad for the remainder of the day.

This was all free information I found online in less than an hour, that gives me some great ideas for content, partnerships and potential tools to build into my site to be relevant and useful to my target audience. Of course this is just some quick loose data, so I'll emphasize again: be careful where your data comes from (try to validate when possible), and think about how to use your data wisely.
Yesterday I was re doing our process for ideas and alltop was a part of it. Now I have also known it was a bit spammy (some of my grey sites are featured ) but now it seems way too bad. You have places like new York times next to random adsense blog x. Guy kawasaki needs to really start giving some sort of influence ranking or at least culling the total crap ones.
If you are using Responsive Web Design, use meta name="viewport" tag to tell the browser how to adjust the content. If you use Dynamic Serving, use the Vary HTTP header to signal your changes depending on the user-agent. If you are using separate URLs, signal the relationship between two URLs by tag with rel="canonical" and rel="alternate" elements.