My profile on Google Plus has some amount of public content, and if you follow me there and I know you, I'll add you and I share quite a bit more to my limited circles. My public posts on my profile are a bit skewed toward photography.
For board gaming related posts, I've also created a "Plus Page": mkgray Board Games where I'm posting most of my public board gaming related comments. I just started it earlier this week, but have a big burst of activity due to a ton of gaming at Lobster Trap (a friend's mini-gaming con).