In "Wiki as Wunderkammer" [1], I grapple with the same question, When to post...?

I write, "A Wunderkammer [read post for definition] is not a natural history museum; it’s a personal narrative set forth in objects. In many ways, weblogs are the modern equivalent of Wunderkammern...
"...the Wunderkammer mingled fact and legend promiscuously, reflecting European civilization’s dazed and wondering attempts to assimilate the glut of physical data that science and exploration were then unleashing."

A blog post is a snapshot of personal state. It's a personal memory map and a public bullhorn. If you could take and occasionally embellish pictures of great ideas, unique sensations, pressing tasks, awkward social encounters, and fleeting moments and you were willing to share those pictures with Larry King on international television, a weblog would be the album in which to store them.

[1]http://blogs.msdn.com/korbyp/archive/2004/03/14/89417.aspx

Ah, as programmers we love to have orderly rules, don't we? :) Of course, we're rarely able to achieve them in a clean way in systems that have any interaction with real life.

I blog whenever I have something I think other people will want to hear. Whatever that happens to mean to me on that particular day. Or, put another way, I put in my blog stuff I'd want to read in someone else's blog.

Well said, craig!
It is more appropriate to ask when not to post! A friend of mine posts about everything and anything: sushi, co-workers, bad drivers, programming...

He has gotten into trouble with some of his rants but as an end result, has gained great insight and knowledge as well as made hs name known to some important people. You should chose not to post when the post could damage yours or someone's reputation. That is rare so, when in doubt, post away, i say

Let the reader decide if they want to read it or not...

I'm coming of the opinion blogging is like personal publishing, and that means ideally a blog should have a "theme." (I of course don't do this on my blog, yet. :)
For example, you could have a blog about FlexWiki-related topics. You could have a blog about Longhorn-related topics. You could have a blog about your political interests. Or your love life (if you are Meg Hourihan.) But (and I'm sure this will be controversial) I don't think blogs that meander back and forth are good for anyone other than the owner's ego, but they don't provide the benefit to the blogger they could if the blogger were focused. I'm starting to think that anyone who wants to blog on very unrelated topics should have multiple seperate blogs, not because the can't, its a free country, but because they'll get a better readership if their stick to closely related topics that are more likely to interest all of a given blog's readers. Those who blog about .NET, politics, religion, and what they had for breakfast are just too much effort to follow. JMTCW.

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