If anyone has any lingering doubts about the rise of RSS, you can put them to rest. IDG World Expo has set May 17-18 for a New York conference dedicated to content syndication. The conference is being billed as an “executive-level” gathering targeting content owners and producers, media execs, corporate marketers, advertisers and public relations professionals. Two tracks will highlight the conference: publishing and marketing. No speakers or pricing have been announced yet, but there is a Web site for the conference: www.syndicateconference.com.