Meta-status-update: Google+ and (separately) the future of my blog
I'm on Google+, but I am not planning to post anything important-and-public exclusively there. I might experiment with crossposting.
In terms of what I want out of the place where I post the stuff I post here, LJ is still the better option, in supporting HTML posts, decent archive browsing, and finding context starting from permalinks.
I'm still thinking of switching to a different platform, possibly of my own creation, to get additional features: style sheets for blog posts, embedding JavaScript-containing content in posts (tastefully, I assure you), even better archive browsing, no ads, and a visual design more closely connected with my non-blog site.