The Keys to Keyword Advertising

Until recently, courts have had relatively little to say about the practice of keyword advertising &mdash; <i>ie</i>, triggering Internet advertisements to appear when users search for a keyword identical to a competitor's trademark. Practitioners could look only to a single decision denying Playboy Enterprises, Inc.'s ("PEI") motion for a preliminary injunction against Netscape Communications Corp. ("Netscape") and Excite, Inc. ("Excite"). Now, four courts have recently issued decisions reaching starkly different results on keyword advertising practices, including a Ninth Circuit decision reversing summary judgment that had been entered against PEI in its litigation with Netscape and Excite. While much remains to be resolved, certain factors have been particularly influential.