Frankly, I don’t know, but it still amazes me that I am able to come up with 2 new domains/blogs getting PR7 in less than 6 months.
First, when I got Smart Wifi Chronicles late April this year, it was to move the discussions about Smart Bro from my blog to that dedicated blog. Now it gets around 600 unique visitors a day with and average 2,500 pageviews. So, you can just imagine how much traffic I lost on my blog when I move a huge chunk of the readers there.
So, ok, back to the PR 7. During the first SEO Philippines contest last June, I created a page on that blog as some sort of non-competing entry. In just 3 months of link-building, that page shot up to PR8 with the main domain on PR5, some categories on PR6 and a PR7. It was exciting to see the results of this little experiment which still boggles me to this day. So, okay, I sold a few links on that blog, some of which amounted to as much as $160 per link. That page is now just PR7 which is still pretty high, IMO.
Another domain which I bought specifically for the SEO contest was seoph.org. I reckon that the domains should be a bit generic so that once the contest is over, I could still use it for some other purpose. Now, I am using the site as an SEO blog which is also at PageRank 7.
Now, the question becomes “how did they end up that high?” There are a few Philippine sites that have PR7 or higher and with this SEO exercise, I think I may have an answer to getting high PRs as exemplified by these two sites/blogs.
- Get links from old and highly trusted domains.
- Get site-wide links from a huge site with 150,000+ pages (a large forum perhaps).
- Get a few deep links from relevant articles or content.
- No massive and low-level directory submissions.
- Avoid link exchanges, esp. from new domains.
The first 3 bullet points is all I can say I did and the last 2 are just mere opinions (something I didn’t do during the exercise). Actually, these are not SEO secrets at all.
Again, I can’t claim that this are the answers but from the SEO exercise that we had, but results far outweighs long-standing theories. Now, all one needs to do is monetize these high PR blogs. 
goood man