thanks for the reply. I'll answer below:

are you purchasing links and they're not - No, I have never purchased links nor have I ever purchased advertising. I do not link to any site that is not related to my content or otherwise iffy.

how much content do they have compared to you - I have 447 pages indexed and the other site has 294. My site has all original content, none has been purchased nor has any content ben taken from ezines or whatnot. **Just a thought, I recently removed some content/directories that were linked to subdomains I created. I had these subdomains for 5 years and total pages indexed was far higher, about 700+**

Are their onsite factors better than yours? - I am not sure what this is(?) Do you mean how many people visit? I have over 6000 uniques per day on average

Do they have more one way inbound links than you do? - i don't think so.

Do they have more authority on this subject than you do? Not sure what more authority is(?) But many "authoritative" agencies like government, universities etc. use my site for their classes.

Are their one way inbound links of better quality from higher PR sites than yours? I'd have to say either no, or possible it is equal but more likely no, my inbounds are of higher PR sites and better quality.

Sorry I can't really answer properly. As I mentioned, I did not develop this site with SEO in mind, it just happened that i got lucky.

Thanks again!