Honest, open, and foolish?

As I share more and more of myself on the Web, I often wonder about the wisdom of being open in this forum. Is it ironic that I should be so concerned about projects like Total Information Awareness (TIA) when I'm basically feeding information about myself to the open Web that TIA would probably not be able to find on its own? How can I get upset at advertisers, telemarketers, and the like who pay good money to learn about my buying habits when I write on the Web about books I read, talk about where I live, gadgets I have bought, magazines that I look at, friends I have -- perhaps a more vivid description of my life than my credit card statement? And who knows what a future employer or prospective date think about me after reading my blog? What I consider honesty, they might consider self-indulgence.

More questions than answers at this point. Some things that I think might be pieces of the puzzle are: notions of the transparent society (time to read the book?), in which there can be "freedom through accountability"; images of heaven in which we will all be transparently known (to God and to others) -- nothing that we have done or said will be secret any longer (Luke 12:2-3); openess as a way of encouraging others to be likewise (or not!)