As a consultant, he has been involved in designing the leading blog and social media applications on the web, including Blogger, TypePad, Flickr, and National Public Radio. Previously, Jeffrey served as the Executive Director of Interface Design for Wired Digital and Lycos Inc., where he managed the look and feel of HotWired, the HotBot search engine, Lycos.com and others. He was also an original columnist for Webmonkey, the author of the acclaimed books The Art & Science of Web Design and HotWired Style: Principles for Building Smart Web Sites.