A new site that might be helpful, it certainly is interesting, is MS Wishlist.
Agents and editors describe manuscripts they wish they'd find in their inbox.
Website  http://mswishlist.com/


And some ambient noise to help concentration

• Rooftop garden: https://www.youtube.com/watch?v=9cvwBxXXBMw
• Office in the park: https://www.youtube.com/watch?v=FVWRkgAYQ9g
• Thunderstorm: https://www.youtube.com/watch?v=Sv0LwXYAVVg
• Forest https://www.youtube.com/watch?v=MKhKHY9Q05A
• Train journey in the rain: https://www.youtube.com/watch?v=l0zodQ1QMvM
• Pirate Ship 8hrs: https://www.youtube.com/watch?v=HxGOs62HQjk
• Cafe: https://www.youtube.com/watch?v=-kjHrQwemW8
• Fireplace: https://www.youtube.com/watch?v=Td2pjke6QHg

Added

"Resources" for links to helpful sites. In this case, two links to sites about how to write a one page synopsis

"Scrivener" for links to sites with tutorial information on how to use Scrivener.

An excellent article on critiquing the way we do it.   Milford-Style Workshopping