Brian is one of the founders of Crosscut.  Crosscut has been doing seed investing in LA since 2007.  Brian explains their portfolio construction ($1.5-3M is "typical" but they stretch in both directions), the personalities of the Crosscut team and how they think about their reputation and the ecosystem they have been a part of growing for the past decade. 

Nick Kim's post on Platform as a Product: https://medium.com/@nickbkim/platform-as-a-product-ed745ae97e6a