10 Techies in the Shadows - Joseph Smarr, chief platform architect, Plaxo
Smarr is Plaxo's first employee and the technical lead for Plaxo's developer platform. He is also lead engineer for Pulse, the company's social aggregation initiative, designed to compete with Facebook and LinkedIn, among others.
Smarr also is one of the main authors of the Bill of Rights for the Open Social Web and Plaxo's representative for the DataPortability WorkGroup, which is hashing out guidelines to allow data to be safely shared across applications and social networks.
Some of the people on this list are little-known co-founders playing second banana to more famous names. Others have broken new ground or developed much-heralded technologies without winning much fame for themselves. You should know them, and, more importantly, you should know what they do. By Michael Hickins