http://stackshare.io/stacks might have what you are looking for. Although not all YC companies are on there, some of the more well-known companies are.
Like ASquare said, it's obvious English is not your first language. If you want to keep your readers engaged and coming back, attempt to have native english speakers proofread through your writings first before publishing. You might want to look into Grammarly.com I've never used it before, but I think it might help your particular case.
I like listening to Electronic Dance Music because it gets me pumped and I can code for longer hours at a time. A good source of the latest EDM is Spinnin' Sessions on Youtube. They roll out 1 hour sessions every Thursday. http://bit.ly/1gX4ge6
I work with a team of three (remotely) and I have to say Asana and Hipchat are what keep us productive. My team uses Asana for managing tasks, planning and running meetings, project management, and so much more. Check out this link and watch the videos to see all the things you can do with Asana. https://asana.com/guide/explore/videos/get-started I've never used Basecamp so I can't speak about the differences. We use HipChat as well for team-based chat. I highly recommend it.
I'm also curious to hear the answer to this question. Last time I applied, it was only with an idea that had not yet been implemented. Now, I am waiting to see if my current idea has traction before applying to YC. I think they see traction as a very important factor in accepting you into YC. I might be wrong though.
I like your view on this. Although I would like to say that I'm not in it for the money, the truth is, many of us are in it for the money. It's that additional part of you wanting to do something great, building a product you are extremely passionate about, that far outweighs any want for money, as is in my case. I live by the philosophy that if you work hard on an idea that you're passionate about, and as you say, will create tons of value or change the world in some way, then success will definitely come knocking.