Here you will find a number of online resources to learn about photography from the comfort of your home and at your own pace. It includes full program degrees, courses, webinars... Some resources are free, some offer paid courses or require a membership. Of course, there is always an infinite pool of resources available in media-streaming platforms like YouTube.com or Vimeo.com.
Creative Live has live online webinars that you can watch for free or later download for a fee. They have a huge catalog of photography webinars in addition to other topics including art, music and crafts. Although the quality of the webinars is variable, it general it is quite good.
Recommended by one of our members who has taken several paid online courses and felt the courses were worth the money. You get critiques on photos that you upload based on the course lessons.
Julieanne Kost is the Digital Imaging Evangelist Director at Adobe Systems, responsible for fostering relationships with customers through meaningful and inspirational Photoshop and Lightroom instruction. You can also follow her on Facebook. A must for Adobe Photoshop and/or Lightroom users.