If you ignore the essays that get a lot of traffic because they're recent, these are the most viewed:
Maker's Schedule, Manager's Schedule Do Things that Don't Scale How to Get Startup Ideas Life is Short Startup = Growth Before the Startup The Lesson to Unlearn
Who is Paul Graham, you ask? Started Y Combinator, a company you should know about. But I know of him primarily because of his essays, and if you haven’t read them already, I suspect you’ll have a pretty good weekend. Start with this, appropriate in so many ways, and then go where your fancy takes you.