Paul Graham
Y Combinator

"I tried blogging once," says Graham, "but a blog post is too short and quick for me." Instead, he spends weeks crafting long essays and posts them on his website. His writing -- informed by experience helping to start more than 140 companies through his seed fund, Y Combinator -- deals mostly with the ins and outs of getting started.

From "Startups in 13 Sentences"

"You make what you measure...Merely measuring something has an uncanny tendency to improve it. If you want to make your user numbers go up, put a big piece of paper on your wall and every day plot the number of users. You'll be delighted when it goes up and disappointed when it goes down. Pretty soon you'll start noticing what makes the number go up, and you'll start to do more of that. Corollary: be careful what you measure."