1. Entrepreneurship, Social Investment and Not-so-Social Investment: Scott Shane's The Illusion of Entrepreneurship is a great overview of entrepreneurship research in the US, a body of knowledge that is a lot more applicable to developing contexts than is generally acknowledged. For those wishing to spur social businesses, going to back to first principles of corporate finance and principal-agent problems is a good idea--check out Henry Hansmann's The Ownership of Enterprise. There's a lot of entrepreneurship in the secret spaces of the web, though its generally not what we think of when you use the word entrepreneur. Here's a guide to The Dark Net.
2. Memorial Day: The reason for the holiday in the US is it's Memorial Day, to commemorate the sacrifice of those in the Armed Forces--what's usually invoked is fighting for or defending freedom. I always tend to think of The Gettysburg Address. It's not just soldier and sailors who fight for freedom and to defend rights; Letter from a Birmingham Jail is a good reminder of other fighters. Sometimes you fight for your rights by leaving--The Warmth of Other Suns is the story of the Great Migration in the United States when African-Americans pursued freedom by moving out of the South en masse (I can't quite put my finger on what present situation it makes me think of...). The use of power in pursuing virtuous ends is tricky, and something we should think about more on weekends like this, perhaps by reading Reinhold Niebuhr's The Irony of American History.