YC-organized Startup School supplies advice to a larger audience, along with a chance for connections. I'd also contend that news.yc is another such tool offere

YC-organized Startup School supplies advice to a larger audience, along with a chance for connections. I'd also contend that news.yc is another such tool offered by YC. The summer/winter batches are a chance for picked companies to receive specialized attention. YC can't do that for everybody.