Writing blogs is one of the most useful and powerful things you can do for your website to provide fresh content to keep people coming back and help search engines learn about your business. Think of a single page on your site as a fishing rod, and the more pages you have the bigger your “net” gets. It’s called the inter-”net” for a reason! One way to add more content for search without bogging your site down with too many unnecessary pages is to create meaningful blog posts.
What is a meaningful blog post? Every blog post should have a purpose. It’s supposed to tell a story or give detailed information that can be searched for. It is not just a place to dump photos, which is a common thing many photographers do.
Instead of showing off an entire event in a photo strip style blog, show me 4-7 images, tell me the story of the event or the session (make sure to include the location), and link to a gallery (possibly hidden) in case people want to see more pictures. The story can be just as helpful to a viewer as the pictures, because they may say “oh wow I want my photos taken there” and that's what you are looking for. Or someone may be looking for a specific type of photographer in your location and if you happen to have a blog written with those keywords or phrases in the title and within the content of the blog, search engines may pick it up. This is particularly true if it is written in a way that people search (cough, cough).
Meaningful content can be hard for people, and not everyone is a writer. But 2 or 3 paragraphs (about 300 words total) about an event and a few pictures are more valuable to you and your potential readers than just another gallery. They can always go looking for more pictures on your site.
Meaningful content will also encourage them to stay and read longer, which is better for engagement on your site. Just make sure you tell them where to go or what to do next when they are done reading. You can send them to another blog, a gallery, or to book with you — the key is to keep them on your site.