I've been making some tweaks to where and how I publish and how I use various social networking and communications services over the past few months. Here's the current status:
I have two primary blogs.
Connections is my "personal" blog. It's personal in the sense that no one else has any control over what I publish here. That said, it's mostly (75%+) devoted to topics that fall generally under the umbrella of "tech." I generally keep the blog going with short link-comments when I'm not pushing out anything longer. In a new development, I expect to be publishing more posts that directly pertain to my activities at Red Hat here.
The Pervasive Datacenter is my CNET Blog Network blog. I typically publish once or twice a month on technology topics, nominally with an emphasis on enterprise IT although I do posts on photography and other consumer tech of interest from time to time. I am especially careful about topics that could be perceived as in any way a conflict of interest because of my day job at Red Hat and therefore mostly avoid getting into individual companies, strategies, and products.
I am active on twitter as @ghaff. As with my blogs, I concentrate on tech topics but no guarantees that I won't get into other topics from time to time.
I mostly view LinkedIn as a sort of professional rolodex. If I've met you and you send me a LinkedIn invite, I'll probably accept though it might help to remind me who you are. I'm most likely to ignore you if you appear to be someone just building up a big network for spammy purposes.
I'm a pretty casual user of Facebook and I limit it to friend friends. That's not to say that some of them aren't professional acquaintances as well. But if you just met me at a conference somewhere and want to friend me, please understand if I ignore you.
I'm not sure where I stand with Google+ at this point. I'm on it, generally like the interface, and some of my friends are active. But I don't feel a great hole in my social media sphere that's calling out for a Google+ to fill. We'll see.
PR pitches, etc:
Lord, do I get a lot of crap sent my way. The redeeming aspect of this is that I periodically get some gem that gives the PR group at Red Hat a chuckle (after any embargo is off of course). If you work for a Red Hat competitor or their agency, you might also want to think twice about offering to pre-brief me on some new announcement.
With that out of the way, I'm interested in a wide variety of tech topics. However, for obvious reasons, I tend to avoid writing about specific companies that closely intersect with my day job whether as competitors or partners. It's also a matter of my bandwidth. I have less time for blogging than when I was an analyst but if I write about one company in a space, it's not really fair to turn down all the inevitable requests that come in from other companies doing something similar.