Older entries:

• Link Building 2009 - Build Your Own Cliques For Link Relevancy | February 23, 2009
• How Might Search Engines Detect Paid Links | February 9, 2009
• When Did Link Building Companies Become "Black Hat" SEOs? | November 25, 2008
• Black Hat / White Hat: Playing Dirty with SEO | August 20, 2008
• Is it Worth it to "Buy" Links from a PR0 Website? | April 9, 2008
• Hitwise Shows Consequences of Being Banned by Google | February 14, 2008
• Google Drops NoFollow on Google Links After Being Called Out For Selling Links | January 9, 2008
• Sites With Downgraded Toolbar PageRank Still Passing Link Juice? | January 2, 2008
• Matt Cutts Talks About Paid Links -- Again | December 31, 2007
• Google Declares War on Paid Links: But Why Now? | December 3, 2007
• Google Selling PageRank 7 Links on Google.com Domain | November 29, 2007
• Shopzilla Pays Bloggers $100 After 'PR' Issue | November 16, 2007
• Can The Webmaster Hurt Google? | October 12, 2007
• Google Webmaster Central Cleans Interface, Adds Paid Link Report & More | June 13, 2007
• Matt Cutts Tells Us Which Web Directories Can Impact Your Search Rankings | May 15, 2007
• Interview with Google's Adam Lasnik on Paid Links, Duplicate Content, and Other Topics | May 4, 2007
• Matt Cutts of Google on Paid Links Again | April 16, 2007