Learning digital photography skills online

My son has always loved using an old camera I had around the house for the longest time. However, as digital photography took over the realms and local photo shops like McCord Camera have closed down, my family has turned to digital photography, starting with small inexpensive digital cameras and using our smartphone cameras. To increase my son's skills with the craft, he has turned to online training and support files and sites like the one at photo recovery for help with missing photos files, corrupted ones or deleted ones that he would like to try and recover and use.