Here we go, stuff from the photography world.
Portrait Photography:
http://www.digital-photo-secrets.com/tip/2709/using-hard-light-in-portrait-photography/
Pictures for your portfolio. How do you chose?:
http://www.digital-photo-secrets.com/tip/4408/choosing-photos-portfolio/
Is enough megapixels enough?:
http://www.digital-photo-secrets.com/tip/333/do-more-megapixels-mean-better-photo-quality/
Learn about composition, to improve your photography:
http://www.digital-photo-secrets.com/tip/3372/18-composition-rules-for-photos-that-shine/
From the http://www.theinspiredeye.net/ site comes Master of the Fisheye lens:
http://www.huffingtonpost.com/michael-ernest-sweet/willem-jonkers-the-master_b_7691342.html
Polarizing Filters:
http://petapixel.com/2015/07/10/video-an-intro-to-polarizing-filters-in-photography/
Quality of light and contrast in taking pictures:
http://www.digital-photo-secrets.com/tip/4513/cloudy-day-photos-seem-flat/
Where to host your portfolio of pictures:
http://petapixel.com/2015/07/10/6-top-online-photography-portfolio-hosting-options/
Sports Photography:
http://petapixel.com/2015/07/12/a-sports-shooter-shoots-shooters-shooting-sports/
90 days in the life of a National Geographic photographer :
http://petapixel.com/2015/07/14/90-days-in-90-seconds-follow-a-national-geographic-photographer/
Restore old photographs:
http://petapixel.com/2015/07/14/timelapse-restoring-an-old-ripped-up-photo/
Keep Shooting