If you're mainly going to be posting pictures of your awesome armies, I've found Facebook or Instagram are the places to go where your stuff will be seen. I had a blog a few years ago with 2 of my gaming mates as a way to showing them what we were up to gamingwise (separated by 1000s of miles). But it sort of fell off as it took more effort to put and type it all up, and not that many people were looking at them anyway.
Facebook and instagram you just post the pics with a caption, and be done. Instagram is a bit better in that people aren't just looking at the "DBA feed", their looking at your special feed, and Instagram is easy to set up a separate gaming account from your normal account and switch between the two of them.
Contribute to the DBA Wiki! It'll ensure none of these discussions/suggestions/battle reports/army pics get lost!