CEO blogs used to be all the rage within the business blogging community. Remember when we’d hear blog consultants gush about CEOs who dared to blog with transparency and authenticity. I rarely hear much talk about CEO bloggers anymore. Do you?

Remember Jonathan Schwartz? He was the poster child of blogging CEOs, the now former (as of February 3rd) CEO of Sun Microsystems. All you could hear was crickets on Jonathan’s blog from May of last year until finally Jonathan’s farewell post on January 27. Clearly he had a few things going on; Oracle was in the process of acquiring Sun. When you’re selling your company that is pretty much all that occupies your mind. I know that first-hand, as I’m happy to say my company (Netconcepts) was acquired by Covario last month.

The thing that most struck me was the name of Jonathan’s new blog. It’s titled “What I Couldn’t Say”. Hmmm. I guess transparency within a corporation only goes so far.

With the economy is in freefall, perhaps the tolerance of various boards of directors for CEO transparency has lessened? Or it could be simply that CEOs are just too busy and blogging isn’t such a priority, now that “blog” isn’t Word of the Year anymore.

Tony Hsieh, CEO of Zappos, is another CEO blogger who was acquired and who we don’t hear from any longer in the blogosphere. His last post was July of last year, and that wasn’t so much of a blog post as it was a copy of a letter that was sent to all the Zappos employees announcing the acquisition by Amazon. Before that, Tony last posted in January 2009.

I’m guilty too. My own “CEO blog” hasn’t seen any activity in over a month — no posts since Covario acquired us. But the reason for my ‘radio silence’ has nothing to do with the acquirer. I may no longer be a President/CEO, but I am still encouraged to keep blogging. The reason I don’t blog frequently is the same one as last year (when I was only posting a few times a month at best): I’m preoccupied running around speaking at conferences all over the U.S., writing for magazines, etc.

Then there are the corporate blogs where the CEO occasionally chimes in with his/her own post. My acquirer, Covario, fits into that group with its “Actionable Insights” blog. Trinity Road, an etailer of religious products like first communion dresses and rosaries, has a corporate blog, but you rarely if ever hear from the CEO on it.

Then there are the CEO blogs where you wonder if it’s actually the CEO who’s blogging because it’s so polished. Steve Spangler the science toys e-tailer, I think fits into that category. If you look at the posts on Steve’s blog you’ll see a gradual evolution to a style that is more and more polished.

Chris Baggott, CEO of the Compendium Blogware, has one of the best CEO blogs out there, in my opinion. It’s full of valuable content, it’s not overly polished, his personality really shines through, and he blogs regularly. It figures though. If any CEO would have that kind of a CEO blog, it would be the CEO of a business blogging software company!

WordCamp Dallas is later this month — March 29-30. Netconcepts’ own Chris Smith will be speaking on SEO for blogs. There’s a great lineup of speakers, including WordPress founder Matt Mullenweg. Registration is only $20. There’s no reason not to attend! Even if you blog on a different blog platform, you should still attend. The networking with fellow bloggers alone is worth the travel costs. I speak from experience, having attended WordCamp in San Francisco last summer and I loved it.

Blog World Expo is another fabulous conference to attend. Their inaugural year was last year. It took place in Las Vegas and will be back in Vegas this year — September 20-21. At last year’s conference I spoke on an SEO panel with SEO gurus Aaron Wall, Andy Beal and Vanessa Fox. I stayed to the very end of the conference, and I was glad I did. I got to hear billionaire blogger Mark Cuban speak during the closing keynote of the conference.

Then there’s BlogHer 2008 — a conference for and about women bloggers, taking place July 18-20 in San Francisco. All the speakers are women. My 16-year-old daughter Chloe Spencer (the Neopets blogger) was privileged to speak on their Professional Blogging panel at BlogHer 2007. I attended last summer and really enjoyed it, even though I wasn’t the main intended audience (i.e. women bloggers).

One guy I spoke to during a cocktail reception at BlogHer last year told me that BlogHer was a great conference for single men like him to attend. He said it was “like shooting fish in a barrel.” Haha, I laughed when I heard him say that. Contrast that with WordCamp Dallas, which is projected to be 75% male.

Any other conferences for bloggers out there that I’ve missed?