Forum Moderators: Robert Charlton & goodroi
1) All reviews is unique written.
2) The site have a lot of inbound links from trusted sites.
3) Almost all outbound links lead to promoted commercial sites via affiliate links.
Almost all reviews has been dropped from Google index and I have an idea why it happen:
When realtively small site (say 10 pages site) have 10 inbound links, the Google calculate something like inbound links density (10/10 = 1). If webmaster add during the short time a lot of new pages on this site (for example 990), the inbound links density will seriously decreased to 10/(10+990) = 0.01
In other words, the same amount of inbound links mean different things for the small and big site. 10 inbound links is a perfect result for the 10 pages site and horrible result for the 1000 pages site.
Maybe the fast growth of the site can seriously decrease the basic site quality parameters in Google algos?
I don't know how your site functions, but on mine, only the most recent stuff is on the main page, thus adding too much, too fast, would knock stuff off the high ranking main page too soon. Just my two cents.
News sites add tons of content every day, yet they do fine. Maybe it depends how "good" your site is.
I know of 3 sites now, all in the academic arena, all of whom added whole libraries of content. This was about 6-9 months ago I guess.
They all got seriously zapped. Then they re-appeared (except for one of them, who banned Google altogether). Then they all disappeared again on June 27th.
It's as though Google applies a penalty to any site adding significant content over a threshold. Talk about dolphins caught with tuna!
It's hard to maintain much respect when they use such blunt instruments, and then demonstrably don't seem to care at all about it.
Second, what's your home page PR? And does a site: search pull up any supplementals?
>>In other words, the same amount of inbound links mean different things for the small and big site. 10 inbound links is a perfect result for the 10 pages site and horrible result for the 1000 pages site.
Imo, bigger sites have a higher hurdle to jump over to prove to Google those 100,000 pages, for example, aren't spam. That means more high quality natural inbounds, higher PR, etc. But I don't think its simply a matter of doing math on inbounds and page count, as you suggested.
The links mostly have a reciprocal nature, but that is not direct "page <-> page" swapping. We review the commercial sites and kindly ask to put the back link to us from the main affiliate program site.
We have some natural linking also in blogs and forums. We don't use any spam technics, these links are published by our surfers.
I guess the only thing that seriously changed while our site was growing was the inbound link density. The site value has been up 5-10 times, but the inbound link amount has been up 30% only.