ClickZ's Zach Rodgers canvassed online agencies to get the street's sense of which rich media technologies are best for particular purposes. His piece notes that all the major rich media firms have gone from niche formats to attempts to become one-stop shops for all types of rich media formats and applications. This first part of a two-part series starts to cover Eyeblaster and Eyewonder, in addition to comments from agency executives talking about the industry generally.