Jerry Yang just put up a blog post on his reasons for stepping down as CEO of Yahoo.

Jerry Yang is the $1.8 billion man. The stock market thinks Yahoo is worth that much more without Yang at the helm.

If you’re curious about the talk that spurred such negative coverage of Yahoo CEO Jerry Yang yesterday, here it is. From our perspective he’s out of gas. And needs to step aside for a new leader.

Yahoo begins the rollout of its new user profile today, which marks the first tangible product release for the social part of the Yahoo Open Strategy, or YOS. The profile is one of the anchors (mail is the other) to Yahoo’s strategy of turning the site into one big social network.

An off the cuff remark by Microsoft CEO Steve Ballmer this morning set Yahoo’s stock soaring more than 15% to $13.73, adding well over $3 billion in market cap to the struggling company.

Congress is finally understanding the reality of the Yahoo-Google search deal, and what it means for the state of search competition in general.

In an effort to justify its ad deal with Yahoo, Google is making some very public statements defending it from antitrust critics. Yesterday, Google’s advertising president Tim Armstrong tried to argue, unconvincingly, that advertisers would not see increased prices as a result of the deal.

Yahoo India announced that it has launched yet another social network for the 16-24 age bracket in an attempt to capture the growing market in India. And although scant details are available, it sounds interesting.