Does Thumbtack + Google Ventures = Conflict of Interest?

by Chuck Price
A couple of weeks ago, Thumbtack.com was nailed with a manual penalty by Google. They had violated one of the Webmaster Guidelines; “Buying or selling links that pass PageRank. This includes exchanging money for links, or posts that contain links; exchanging goods or services for links; or sending someone a “free” product in exchange for them writing about it and including a link.Read the full article