From my experience, this is how the whole photo licensing thing seems to work:
- For better ranking in search engines, make sure every post on your blog has its own page and the post-title is part of the URL.
- Now and then post a photo of something that you think could work for advertisement or as a book cover.
- Give it a descriptive title so it shows up as a relevant result in image searches.
- Soon you will receive emails with requests for those other pictures you never thought someone would want.
It's the most unpredictable thing, but that's OK.
