Foresight.is is a treasure of resources for early stage teams looking to do financial modeling. There are many other things available, but this one focuses on financial modeling for startups. Taylor Davidson (creator) has made these easy to use and included step by step instructions with videos to keep you on track. These are exactly the types of forecasts and models that I look for and have recommended these to countless teams over the years.
Fred Wilson, Managing Partner of Union Square Ventures
A solid look at the path startups can take either focusing on profits or on growth. As I like to say if you have users or revenue you are set, but this is rarely the case. Fred Wilson has seen both network growth businesses and revenue growth businesses and this is a great view into his thoughts on both.