These versions provides the slightest hint of content, but each manages to suggest the tone of Dougherty's article. Summary is an encapsulation or description of the content of the linked page. Invasion of the Usability Experts Dale Dougherty questions the value of advice from high-profile usability experts. Invasion of the Usability Experts Dale Dougherty protects web creativity from misapplied usability statistics. The two versions above offer conflicting opinions of the article on the other end of the link.
Evaluation helps the reader determine the value of information on the other end of the link.
Depending on the purpose of your site, you might want to go even further, inserting your own opinion about the value of the link. Invasion of the Usability Experts Dale Dougherty thinks his readers are simply too stupid to understand his brilliant website. Once again, the above blurb examples make contradictory statements, but they are both examples of good blurbs. Even short blurbs can evaluate. Invasion of the Usability Experts Dale Dougherty strikes a welcome blow against Nielsen's minions.