There is someone on this site each and every day. While I consider HPFZ an affiliate, I have not submitted my "Button" to them. The reason for the lack of activity is that I did not open the site to the general public until just recently and that is because I wanted to be sure that all the bugs were worked out so to speak, especially with getting connected to the vastness of search engines.
One other reason here is that I wanted a site where beginners and entry level Harry Potterians, could have a place to come to that wasn't already filled to the brim with all the various plots, theories, and answers that follow those things. I hope that I can catch those kids and adults out there that just put down Harry Potter and the Sorcer's Stone and are looking for a place where they can discuss thier thoughts and ideas without having someone come back and respond with a "Duh, thats ancient news buddy, history..."
As for advertising of the site... because of why I started this site, being for the newer readers, I am really hoping for word of mouth. Older brothers and sisters who might tell their younger siblings that there is a site out there where they can go to without having to becareful of spoilers and such. Or, perhaps a parent who might point their youngster to a new site where they can get in on the ground floor as a "plank owner" if you will.
I do hope that this has answered your questions sufficiently. If not then drop me a PM.