With respect to information quality, you may already see Google raised the bar even higher with another algorithm tweak recently, thousands of web pages ranking got reshuffled or evaporated.

If you saw your website's home page PR or its inner pages PR stole quietly away in the middle of the night without say goodbye to you, do not feel bad because you are not alone. There thousands of others are in the same situation as your.

The latest Google algorithm tweak and update has been pretty widespread and non-discriminatory in nature, they targeting both new sites and well-established veteran sites too.

If you saw your website PR appear being grey-out, in most case, it means that your website or a webpage is under probation. In some certain case, it could mean it be banned by Google. As long as you understand the goals and objectives of Google is to search engine optimizing your website effectively and correctly within their guidelines, your website or a webpage's PR should no problem to get raised.

With that said, there are a few tried and true principles that you need to do when optimizing your website. The first of which, and the one that I always use is to concentrate on getting quality one-way links to pointing to my website.

The search engines now highly favor websites that have a large number of qualities, one-way links pointing to them.

Speaking of links, it is impossible to ignore it when comes to SEO. A page that "naturally" acquires a good number of links will experience a shorter probation period.

The more quality links you can get to pointing to your website, the higher your site will rank.

You probably already heard people tell you about how those black hat tricks and tactics you can use to make your site get higher rank. I would suggest NOT spending your time on those things because they are only short-term gain. Instead, you should focus your entire effort on figuring out how to get other websites to link to yours without you linking back to them. That is the biggest key to ranking well in Google, Yahoo, and MSN.

Doing this is not that difficult. One of the easiest known ways to get quality one-way links is by finding website directories and then submitting your website to them. This can be a very tedious process, but at the same time, it also a very rewarding process.

You can either submit your website to those directories manually, or pay someone to do it for you.

Submitting your site to those website directories is an excellent way to get quality one-way links pointing to your websites. If you pay attention to those online directories, you will see there many of them have a high amount of page rank and those sites have been there for several years already.

Regarding to how to determining what a good link is vs. what a bad link is, here are 2 criteria you need to look at it:

1. The age of the website linking to you

2. The page rank of the website linking to you

As I mentioned earlier, many of these directories are old websites and have a high page rank, which gives them more authority and power in the search engines.

So simply put, if you want your website get higher ranking, one-way link method is a good way to go.