Hi Lara:

It is very beneficial to have links on OTHER sites leading to your site. You've already started that process by posting comments on IdeaCafe with a link to your site.

On-site SEO is also very important because the keywords on your site help the search engines determine the theme and topic of your site, and how it matches up with what people are actually searching for.

You don't need to repeat keyword phrases in an unnatural way (which is actually counterproductive), but you definitely need to have them on your site at least a couple times and also mentioned in your title tag.

Gotta run!

--Joel Sussman
SEO Specialist
Mountain Media
http://www.mountainmedia.com/search-engine-marketing-c9.html