Awesome, this is some superior reply giving a very good insight about your industry! Thank you! My question is, is there something specific about the photography vertical which makes all the sub-niches so lucrative? For example, email newsletters: is it so popular because of the heavy amount of photography tutorials, articles, etc. available on the web and only a few other industries would experience this kind of demand in newsletters? I think photographers are the most heavy consumers of online tutorials and articles along with hackers and designers.
Every vertical has it's unique qualities–and photography is no different. Obviously, being a mostly digital and visual industry, there are lots of opportunities for online education and tools.
And, yes, there are tons of tutorials on the web–although I find many of them aimed at hobbyists or Photoshop users.
There are also a ton of in-person workshops in the industry. I know wedding photographers that make more money every year doing workshops than they do actually shooting weddings.
Given all that, I think there's still lots of room for professional-level education in the industry. Having done a lot of photography myself, I can tell you there's skills/techniques I've only been able to learn from some of the paid forums.
