Time to mention the Selected Papers Network: https://selectedpapers.net
EDIT:
I hope that Tim does not mind me editing this to add extra links:
Introductory discussion by John Baez: http://johncarlosbaez.wordpress.com/2013/06/14/the-selected-papers-network-part-2/
Introductory discussion by Tim Gowers: http://gowers.wordpress.com/2013/06/16/the-selected-papers-network/#more-4954
