One of the most inspirational places on the web is 500px.  What I love most about it is the passion these photographers have for the art of photography.  When one of my images is viewed and liked and even loved on 500px I know it's my peers that are enjoying it and honoring it with their 'thumbs up' so to speak.  It doesn't get any better than that.  I encourage everyone to explore and enjoy 500px.