I was fortunate enough to be invited to check out the 70+ companies of the current YCombinator batch. With that many companies to keep track of, it helps to take notes! I did this in a public Google Docs spreadsheet, and it turned out to be a lot of fun. A few hundred (at least) people joined in, and there were questions and additions from all over (including some of the YC partners and the companies themselves).
If you want to see what YC was like this year, here’s the spreadsheet (still editable, if you have questions or thoughts). Here’s the original spreadsheet of Ycombinator demo day pitches.