This is the full text of Bill Gates' 2007 Commencement Speech. He discusses the importance of solving the worlds inequities in what I found to be a very moving and impactful talk. Definitely boosts my opinion of him as a genuinely good person.
Your one-stop-shop for books and Harvard paraphenalia (sweatshirts, caps, etc.). Used to be able to buy lamps and small appliances there too (not sure if they still do that).
The neighborhood around Harvard is bustling with shops, restaurants and street performers. This is an informational site put together by the Square Business Association.
One of the coolest of the Harvard museums. The Peabody makes you feel like Indiana Jones what with the cluttered collections and some of the anachronistic displays (the old-school dioramas are great).