Search Engine Optimization

I've been thinking about how to get MathScore more prominent on search engine listings. Today I did some obvious things like making a bunch of keywords bold on my main homepage, focusing on phrases like math facts, math practice, etc.

I'm also seeking a quote from a search engine optimization firm. If I can improve my search engine results, the result will be much more cost-effective than Google ads. Want to help me out? If you have a blog or any type of website, make a link to MathScore.com using some keywords like "math practice", "math facts", etc, rather than just MathScore.com. If you do this, let me know!