As my sitemap getting bigger, I’m going to update it with new one. After login to gogglewebmaster I found interesting post in their blog.
At Google, we are always working hard to provide searchers with the best possible results. We’ve found that our spam reporting form is a great way to get your input as we continue to improve our results. Some of you have asked for a way to report paid links as well.
Links are an important signal in our PageRank calculations, as they tend to indicate when someone has found a page useful. Links that are purchased are great for advertising and traffic purposes, but aren’t useful for PageRank calculations. Buying or selling links to manipulate results and deceive search engines violates our guidelines.
Today, in response to your request, we’re providing a paid links reporting form within Webmaster Tools. To use the form, simply log in and provide information on the sites buying and selling links for purposes of search engine manipulation. We’ll review each report we get and use this feedback to improve our algorithms and improve our search results. in some cases we may also take individual action on sites.
If you are selling links for advertising purposes, there are many ways you can designate this, including:
- Adding a rel="nofollow" attribute to the href tag
- Redirecting the links to an intermediate page that is blocked from search engines with a robots.txt file
We value your input and look forward to continuing to improve our great partnership with you.
Wow, since Google can’t determine which one is paid link and which one is not. Back to human 
I just imagine my text link ads or other text link company, I think many of advertiser primary reason is getting high PR.
False report ?
Existing directory business model?
sigh, I think many of them will get affected.
Various post around these topic :
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