My top 3 sources for current web design best practices:
1) wistia.com 
 This is a good web design because of the video style layout background
 2) http://www.croptheblock.com/
 This is a good web design because I also like the video background and the display of different language contents
3) http://www.bodenusa.com/
  This is a good web design because of  the simple layout white background