Executive vice president, network division
Yahoo lags when it comes to search ads, but it's still ahead of Google on one count: Traffic. According to the most recent comScore data, Yahoo sites are the most popular, with 138 million visitors a month (Google has about 135 million).
As head of Yahoo's consumer products - Yahoo Mail and Messenger, and the company's finance and news sites - Weiner oversees Yahoo's "front door," a valuable asset to Microsoft. Under Weiner, Yahoo recently reopened its main site to third-party developers in hopes of expanding its reach even further. The rising star, hired on by former CEO Terry Semel, also led Yahoo's efforts to revamp its online ad system, called Panama, before taking on his current post.