This from Hillary Clinton’s website: You can also see video of Barack Obama announcing his intention to form exploratory committee on his web site.

I’m in. And I’m in to win.

Today I am announcing that I will form an exploratory committee to run for president.
And I want you to join me not just for the campaign but for a conversation about the future of our country — about the bold but practical changes we need to overcome six years of Bush administration failures.
I am going to take this conversation directly to the people of America, and I’m starting by inviting all of you to join me in a series of web chats over the next few days.
The stakes will be high when America chooses a new president in 2008.
As a senator, I will spend two years doing everything in my power to limit the damage George W. Bush can do. But only a new president will be able to undo Bush’s mistakes and restore our hope and optimism.
Only a new president can renew the promise of America — the idea that if you work hard you can count on the health care, education, and retirement security that you need to raise your family. These are the basic values of America that are under attack from this administration every day.
And only a new president can regain America’s position as a respected leader in the world.