pagerank

Interesting article on the use (and need for) rel=nofollow links to prevent link spamming. Google appears to be penalizing sites that have what they perceive to be as link spam. One method to remove that risk is to have all user generated links be marked as rel=nofollow. That way, google won't use them in generating PageRank for other web sites.

The downside is that Google is missing out on a source of content quality - links created only by the motivation in identifying good web sites. If all user-generated content is deprecated, then we only have the "web site publishers" who are ranking the pages on the web. That seems lop-sided and wrong.

The problem is - when should a user be trusted to not abuse the link generating system. This article discusses various Karma-scoring systems that preferentially remove the nofollow attribute from trusted users.

Google wants all paid links to have rel="nofollow" so that the link does not affect their rankings.

This seems a rather narrow view of the web. Think about all the reasons that someone would be motivated to link to another site. Are all of those motivations "pure"? Who's to say that a paid link is any less validating of quality than an un-paid link (at least for a paid link, someone has been willing to make an investment to ensure that people would learn about their site).

What if I post a link to a friend's site, or a family member's site. Should I have to disclose my "conflict of interest"?

This would be humorous if Google weren't so powerful. If Google doesn't think your site is "worthy" - then you are not going to get any traffic since they are far and away the largest search engine.

Google even has a tattle-tale page for people to rat-out what they expect are paid links on another user's web site!

Nick Gonzalez of TechCrunch wrote a very nice review about our name change and new features. It's been some months in the planning and agonizing over a name change - it's nice to have it completed now.

Quoted: There are dozens of bookmarking services out there, but most are eclipsed by the size of Delicious. However, Blue Dot's bookmarking service has ...

Nice article on the importance of inbounds links in pageRank (and how to get them).

Quoted: Inbound links, link exchanges and link acquisition

I think Blue Dot may have been hurt by this latest PageRank adjustment. I looks like our PageRanks have gone down 2 points in some cases.

/Front - PR4 (was PR6, I think)
/Buzz/Video - PR4 (was PR6)
/users/mohit - PR3 (was PR5)

I would expect to see a big decline in our search traffic based on this change. It's not really detectable yet; though traffic volume yesterday was down 7% from one week ago.

Quoted: A major Google page rank update has punished large scale blog link farms and similar sites indulging in heavy cross linking by dramatically ...

ウェブページがどのようにしてページランクを獲得するかについて

My Blue Dot pagerank for my homepage (http://bluedot.us/users/eric) is 5. My Puget News pagerank for my blog (http://thepugetnews.com) is 1. I think if Blue Dot let me do my blogging and money earning from their site (even for an annual fee), I'd do it - I'd certainly get more posts higher in search results that way. But for now, I must toil away in misery trying to find a way to monetize my blog. Harumph!

Here's an idea Blue Dot: Give me control over my profile page and let me monetize it with my own associates links and ads. I'll pay for the privelege as long as you give me enough template flexibility and leeway to post other file types. I already pay $8 a month for my hosting provider on thepugetnews.

Quoted: View your Google PageRank on different Google servers.

Theories about the 2003 "Florida" update of the Google Search engine. Some major ranking and filtering changes appeared to occur at that time; this post discusses some of the effects and theories.

It also points to two outside papers describing Hilltop and Topic Senstive Page Rank (TSPR).

http://www.cs.toronto.edu/%7Egeorgem/hilltop/
http://www.seoresearchlabs.com/seo-research-labs-google-report.pdf

Quoted: google florida update - what really happened

Each Google DataCenter can report a different value for a web page's PageRank. This tool traverses 37 datacenters and displays the PageRank of your site (our any URL).

Quoted: View your Google PageRank on differnet Google servers.