I've blogged about go, and even longer since I've written about my online rating.
Going to go tournaments or go club was a major investment of time, and I found that I would rather spend my game-playing time with friends. Of course, with toddlers, I have no time for competitive in-person go, though in a few years, I hope I can teach them and start taking them to compete against their elders.
I have, however, recently started playing online again, after Ben gained a renewed interest in it. Despite the fact that I don't have time to study my go books, or even devote that much thought to it, my rating is now 15 kyu, higher than it ever was before I took a break from playing. It even got to 14 kyu at one point, but it's been bouncing around as it tends to do.
The go server that I use now allows you to plot your rating versus number of games played, rather than just time. That graph for my account is reproduced above. Though there's a fair amount of volatility (including a significant dip when I took up the game again in late 2009), the pattern is clear -- in fact, almost linear.
So what's the secret of getting better at go? Play more games! I don't claim that's an original observation; I think there have even been studies to that effect. But I find it interesting that it continues to hold even in the mid-teen kyu range I have now achieved. I had suspected my go abilities had plateaued (and was just happy to steal time for a move here and there). Since I don't have time to play as much as I used to, my rating will improve more slowly, but it would be really cool to achieve single-digit kyu status some day.