An internal Yahoo slide, which was leaked on the Internet on Thursday, clearly reveals that the company is planning to eliminate some of its "underperforming" Web properties, apparently in an attempt to reverse its fortunes by becoming more streamlined.

According to the Yahoo slide, the "endangered list" of sites, which the company intends obliterating in a phased manner, include: Yahoo Buzz, Delicious, Alta Vista, MyBlogLog, Yahoo Picks, and Yahoo Bookmarks.

Talking about the move, a Yahoo spokesperson wrote in an e-mail to the Los Angeles Times on December 16: "We continuously evaluate and prioritize our portfolio of products and services, and do plan to shut down some products in coming months such as Yahoo! Buzz, or Traffic APIs, and others. We will communicate specific plans when appropriate."

Furthermore, along with eliminating underperforming assets to concentrate on its core products, Yahoo also plans to reduce its workforce by cutting the jobs of 600 employees, or almost 4 percent of its staff.

Noting that the decision to eliminate some Web properties and lay-off some of its staff was "a tough call, but a necessary one," the Yahoo CEO Carol Bartz said in a memo to the employees that the company needs to make these changes in the near future "to ensure that Products is structured and running the way we want as 2011 begins. And that means we need fewer Yahoos in some areas, and different types of Yahoos in others."